Color question!

My two roommates are moving out, and my boyfriend and another person are moving in. I'm moving from my current room into another room, and want to paint.

The room I'm moving into is a deep blue.

My room now is a pale green that I love and want to keep.

But here's my question...


I kinda want to keep one wall blue as an accent wall. The thing is, this room is one of the most bizarre shapes I've ever seen, so I'm not really sure whether it would look good or just silly.

This is the layout of the room (a la Photoshop):

The building is three apartments in a big old victorian-era house, so there's all kinds of funky fireplace details, as well as HUGE! windows. The windows are 73" tall by about 32" wide. Don't even ask me how I'm going to afford blinds for THREE of those bad boys (plus TWO MORE of the same size in the bathroom!)

The two walls I was thinking of leaving blue are the one on the "fireplace" wall (not actually a fireplace anymore, but used to be), or the wall back in the kind of alcove-space between the door to the hallway and the closet.

I worry about the second option because I feel like it might make that area recede even farther and feel kinda cave-ish.

Here's the color the room is now:

Ignore roommate's stuff still sitting around plz, and excuse graininess - I took this without flash to try and capture the color better.

Here's a more or less accurate representation of the color my room is now (it doesn't photograph terribly well):


I like these colors together, and here's a quick Photoshop mockup that my boyfriend did of how the "fireplace" wall would look in blue, with the room green:


So I guess the question is, with such a strangely-shaped room, would having an accent wall like that look weird? There's so many little bits of wall everywhere that it feels like there's a million surfaces, so I worry a little about whether it would make it look chaotic.

Thoughts?