There seems to be some confusion here. I meant "realistic" as in the artstyle. The character models and faces in Divinity 2 looked way too colorful and lacked much detail as well. The world itself is also quite colorful and this only changes for the dungeons. I've got nothing against colorful lush environments but when they hurt your eyes (as they do in Aleroth) it is a problem.
I hope Divinity 3 goes back to the Divine Divinity style and I certainly hope Larian aren't going to copy the new artstyle found in games like Diablo 3 and Dungeon Siege 3. Divine Divinity gave you color but it felt rather realistic and unique.
I have a different way to see things :
- Screenshots of wow are waaay too colourful
- KOAR is alsop way too colourful
- Divinity 1 was way too dark for me
- Beyond Divinity, too
- Divinity 2 did it right
That's my personal opinion on the colours.
My dream - and here's the fanboy speaking again

- is Drakensang 2, however.

It is light, but not too colourful. Perfect, for my own sense.