Oh I'm so glad you're getting to have your holiday before you begin chemo. It will give you lots of happy thoughts to arm you against fear. Bring lots of lovely souvenirs back to help you remember it all.
Bespoke: Clemmie or Dimitri are the ones to speak to about this. Clemmie has her own frag and Dimitri visited London recently and was investigating having a bespoke fragrance made. I did see on the Floris website that they offer a full-blown bespoke service or they will customise a fragrance for you but I think that's a case of adding some ingredients to one of their existing perfumes in a bottle for you http://www.florislondon.co.uk/versio...x?itemID=SPG36
I believe Alaya Moriel also drops in here occasionally and might give you a perfumer's viewpoint.
While you're in Europe, why not enjoy trying the wonderful 'indigenous' ranges? Off the top of my head, I know Acqua Di Parma has a number of great perfumes as well as the classic cologne (though that's fabulous) and there are lots of wonderful Italian perfumers that I am sinfully ignorant of.
In London you'll find plenty of smelly things to do! (Harrods, Selfridges, Les Scenteurs, Ormonde Jayne, Miller Harris... *sigh*).
And 'sweet fresh' to me is mimosa. But I don't know any wonderful Mimosa-based fragrances.
Better minds than mine will soon be riding to the rescue, I'm sure.