Thank you for the input ladies (and the compliments)!
Patience: boots, definitely! I meant to take pictures with boots too, completely forgot;-)
Marianne: yes, those are the grey Fly London pumps. Angie was right again: they are incredibly comfy and very versatile.
kingadraakon: I don't know if I'm brave enough yet to try a bright coloured belt. This is actually the first time in my life that I'm sporting a wide belt, and I still need to get used to it;-) I was wondering about necklaces too, I'm not sure what kind of necklace would be best with the cowl neck. Maybe I should focus on bracelets?
San: you would look stunning in a dress like this. And I like the sound of pairing it with skinnies.