So here's what we (finally) came up with:
over the bed (you can see a little Thomas on the valance). Further down the same wall is Spider Man and Transformers.
I mentioned in the last post that I thought the walls were too busy. The Transformers freak me out a little. But he loves it. He loves his super-hero, action-packed walls. And they aren't permanent, so it's easy to remove (and replace) them.
Please ignore all the clutter in the photos. It's embarrassing, but, well, who am I kidding? I'm a pile-maker, a packrat-- a clutter bug. It's not good. I'm working on it. And hoping it's a habit my kids don't pick up.