I have no input on layout, but with all those windows, reflected color off the walls isn't going to affect your color sense too much. In my last apartment, I had my sewing set up in a room that was painted a sort of olivey-yellow color. It was so bright and cheerful and I loved working in there. I had a large north-facing window and there was a lot of light spill from the next room which had a south-facing window.
So I would say pick a color that energizes you and makes you happy and have at it. :) I know I would never, ever want to work in a room painted white or beige. There's nothing inspiring about it.