My wardrobe needs to be improved! help my find something unique!

First things that come to mind:

You need an Aoud fragrances:

Anything by Montale is a good place to start, or for the cheap route YSL M7

A vetiver:

Encre Noire, Tom Ford Grey Vetiver for something lighter, or Creeds original vetiver

An Amber:

Amber Absolute, L'Artisan L'eau d'Ambre Extreme, Ambre Precieux, Ambre Sultan

Something spicy:

Frapin Caravelle Epicee


In general, considering almost everything you have is a gourmand pretty much, with some Fresh fragrances, most things will seem elegant next to them. All those ones I mentioned are unique, and perhaps elegant. Sorry I recommended too many Niche fragrances, but I had to. Oh and if you mean Mature and formal by elegant, I can think of quite a few cheapies: CK Obsession, Burberry London, Silver Shadow. But when you say Unique and elegant it strikes me as something Niche and high quality

You live in Spain, and nothing by Puig or Loewe? At least try Sybaris. Is Quorum popular there?

And then there is the famous Loewe house -- how about their stuff?

I agree that an oud and a vetiver are indispensible to a well-balanced fragrance wardrobe. (But these are by far my two favorite notes, so maybe I'm a bit biased.)

My recs: YSL's M7 or L'Artisan's Al Oudh for the former (yes, I know L'Artisan is a niche brand but it shouldn't be too hard to find a sample, especially by mail order); and Guerlain's Vetiver or Encre Noire for the latter.

Drakkar Noir, Santos De Cartier, Must De Cartier, Lalique PH or Encre Noir (Personally i prefer Lalique PH), Gucci Envy, Armani Eau Pour Homme, Aramis Devin.
These are a rainbow of some categories : Aromatic Fougere, Woody Aromatic, Oriental Spicy, Oriental Woody, Citrus Aromatic, Chypre

I recently checked out a cologne called Tous in Heaven that is a Spanish-based company. I bet there is a store near you that carries it. It's a youthful scent that is dark, fruity, and quite sexy as well. Check it out next time you are in a Tous store.

i just received some Opium ph from YSL. Its very unique in my opinion.

1+
Another unique Oriental Spicy that you can try.

elegant and unique? probably gotta dip in the niche market for that, start at Editions de Parfums Frederic Malle. French Lover is a good one to start with

all superb in their own right, natural and unique. for elegance, the first 3 will definitely work

De Nicolai's New York might open some eyes. Excellent quality and you won't smell like everybody else. (woody oriental)

Well, Honestly as much as I love Frederic Malle, I'd rather try another Niche house. Sure that house is in my top 5, but samples/decants of his fragrances are ridiculously expensive. You're looking at $10-$15 for a 2ml, $40-$60 for a 10ml, just try to find a local store, or experience with other Niche brands to know exactly what you're looking for before making an investment in such expensive samples, if you can find them for an affordable price, go for it by all means, I'm just warning you, you could get a full bottle that will make an actual addition to your wardrobe for the price of those 4 decants.

Here's a quick review, if it's any help:

Musc Ravageur: Incredibly good sweet, musky, powdery, creamy, vanilla fragrance. But looking at your wardrobe, it doesn't lack gourmands and sweet fragrances at all. Also it's not elegant or very unique, just an extremely well made fragrance.

French Lover: I judged this one too early from it's somewhat cheap, nasty opening. But I've come to learn that almost all of Frederic Malle fragrances have unimpressive or even bad openings, they're all about the dry down. I'm yet to fully experience this fragrance, but I can say it's hard for a beginner to wrap his head around it.

Carnal Flower: Floral explosion, with some melon in there and various other fruits. It's too strong and too floral for me. If you don't already love floral fragrances, I wouldn't recommend for you to start here, it's just too much.

Bigarade Concentree: Bitter, fresh orange, that gets creamier towards the dry down. Another lovely creation from the House, but considering how short it lasts, this is probably the only Frederic Malle I would absolutely not recommend paying the price for regardless of your taste. Hermes has a couple of similar orange fragrances that are cheaper and dare I say stronger. In general, and this is just my personal opinion, don't buy a niche fresh/aquatic/citrus fragrance unless you know you LOVE it. For one they last very short for the price, and also they tend do have that much variation or uniqueness.

I'd recommend vetiver extraordinaire, Iris Poudre, L'Eau D'Hiver, among various others. I'm sure you'll love musc ravageur, but your wardrobe is already full of sweet fragrances. Get an Aoud and a vetiver first at least.

Every collection needs a touch of madness, A.K.A. A*Men!

you need some strong woodsy scents, bois du portugal is good if you want something expensive, if not then m7 will probably be fine.

Spray them on your clothes!

If you want unique, go ahead with the Lutens then.
Ambre Sultan
Chergui
Daim Blond
Douce Amere
Five O'Clock Au Gingembre
Cuir Maresque

Is there a Hermes Boutique in Seville?

If so you might find you can make up a sample set of 4 x 15ml of the Hermessences line. Not cheap but not stupidly expensive either - should be around USD 150, and you get four great niche scents to live with for a while. Vetiver Tonka and Ambre Narguille would top my list and I'm sure you'll find another couple.

If there is a standalone Chanel flagship store you might find Les Exclusifs line as well but you're stuck with 200ml bottles. Try Coromandel (chocolate patchouli) Sycomore (excellent vetiver) and Bois des Iles (don't be frightened by the aldehydes rush at the front, this is an excellent smooth luxe sandalwood).

If you have access to Lutens +1 on Daim Blond and Chergui and try Gris Clair (lavender) & Filles en Aiguilles (smoky pine) while you're at it

Antaeus by Chanel!