Pixel art editor redesign

Hey there!
I've redesigned my favourite Pixel Art editor...

Pro Motion NG, is based on once famous DPaint,
which is pretty old, and not really intuitive, like most of the older software.

I tried to keep the design familiar to original, so it wouldn't trigger old users too much, but I also had to rearrange some parts similarly to most popular editors, so it could be more intuitive to new users as well, hopefully I got this compromise right.

I would love to get some feedback, especially about the intuitiveness - if something is not clear at the first glare, tell me about it :)