I do not know much about fragrances since I'm also a starter but I think you should get him to try
Lolita Lempicka Fraicheur
It's a pleasant surprise for me. It's really not overwhelming. You will feel like you're wandering in a peaceful forest. It's really masculine but soft at the same time.
IMHO, it's really suitable for a artist, quiet, reserved but smart, funny, warm, caring kind of guy.
And remember this is the "Fraicheur" version not the original Lolita Lempicka Au Maculin which is a nightmare.
This scent would be perfect for
Every Day Formal; Romance or Night out
As far as I know it available in 5ml, 50ml and 100ml
Hope this help