Brainstorming Walker's Room

Now that Walker and Charlie are no longer sharing a room, the baby blue nursery seems a bit out of step for Walker's big boy status. Walker is turning four (Yes, FOUR!) in two weeks and I want to give him a fresh new coat of paint in his room.  I'm also tired of his old curtains (midnight blue velvet hand-me-downs), so I picked up some green and white stripe fabric on sale at IKEA yesterday.  And you know me: I love a project.  So here's what I'm thinking for my little birthday boy. 

I'm thinking a map and green stripes...

source

I'm thinking sophisticated shapes and bold color...

source

I'm thinking a corner book nook...

source

I'm thinking gray walls, green accents and gold pops here and there... 

Ship image via HERE.

It's not fully there yet, I'm still brainstorming... 
but if you've got any brilliant ideas, lay 'em on me!