I played this already but I'll send my thoughts your way!
1. The first person does work! The only think I'm wondering is how did he get to switch places with the painting. I never read the book! Also remind me, did he switch appearances with the painting (he's the same guy but looks different)?
2. I still want to see him interact with the painting more. Besides the little snippet of it we see, how does he feel about leaving his "former self" behind on a wall?
3. Pacing's great!