I have played and rated your game!
I find the aesthetics very original. The painted appearance of the environment certainly works.
Didn't realy get a grip on what I was supposed to do though.
I just kept running, 'painting' away the black structures until I finally met up with the girl, passed her and ran on.
Before I caght up with her I'd passed the final pieces of the background and floor so I was running in the void by then.
I was probably missing something?