help me spruce up the store, part 1

I want to make some changes to the store and I need your advice, starting with wall color. Let me show you the general layout. The store is shaped like a 7. The long part of the 7 is a big room that was ochre when I rented it, and I painted it antique white. The floor is wood that someone had done a really ugly faux brick paint job on, and I painted it green. The first two pictures were taken when I was moving into the store in October 2010. 

The only natural light comes from three smallish windows in the back of the store.

I think the white looks nice when there's not much in the room. 

A year later:

That white desk is the sales counter. You turn the corner of the 7 there, and the white wall and green floor continues for about 7 feet. After that the floor changes to wide board pine, and the walls are red. (I'll get to that section in another post.)

 I'm not happy with the white walls. They feels kind of cold, and I don't think art shows up well against it. I love the green floor.  I was thinking about something bold--a deep blue or yellow or orange even. Maybe even do the wall behind the desk one color, the little section where the field bags hang another, and the rest another. Kind of like this store---Kabinett and Kammer.

Or is that too much color? Especially considering I carry a lot of painted furniture? My other thought is a warm caramel color--a light brown with yellow undertones. Or I could paint the wall behind the desk orange and the rest caramel. Which way would you go? I also want to paint that white desk.

edited to add: I keep looking at grey and charcoal. I'm worried it would be too dark without good natural light. But I keep going back to it... and I've gone down the Pinterest rabbit hole. I have a store inspiration board here.

 I look forward to hearing your thoughts and ideas. I'll respond in the comments section so it can be a conversation. 

Jen