Fun game with potential! The moving definitely adds to the challenge.
The pig one needs a color picker! So hard to distinguish between all those pinks.
Also a visual grid would help placing your first paint. Now it's hard to gauge where you need to start and it's easy to be one off (although that does add to the challenge).
Having the order of the paintings randomized would be good too. Now the only way to get to new paintings is to finish the early ones first.
Great job on this one !