Wow! It's the Itsy Bitsy Star Wars Committee ... I love it! 

Been playing around with that room that's driving me nuts, changed the wallpaper using some Photoshop patterns and a background from a pack I'd bought here donkey's ages ago. Here's what I've got so far as a replacement for that Purple Pride render backdrop. 

This green one is using the Designfera pack background. Other 2 are with free Victorian patterns for Photoshop. Drafts are pretty rough but usable, I'm just not quite certain which to pick. All look good with my character, but I'm leaning towards the Victorian designs, second in particular. Or a green version of it if I can find/make one. It is Baker Street, after all.

Honestly? I can see exactly why Sherlock would decide to decorate with bullets from John's "borrowed" gun. That blasted wall does indeed have it coming!