Hi! First, I think the drawings are great. Especially level1 looks sooo realistic!
My first thought when I saw the puzzling process was: NOOOO way I can do this. BUT, it was actually quite doable. It took me 5 minutes, which is ok.
I think it's a cool idea to combine both of your hobbies. You seem to make a good team .
I don't think you need instructions, but a small version of the picture would be nice, sometimes I almost felt lost within the puzzle. Or maybe you could add the option to take a look at the result for a moment and then go on.
Thumps up!