Great game guys! The artstyle is very unique and the puzzles are nice. Though there were quite some difficulty spikes here and there (or difficulty drops). It would have been nice if you can draw multiple lines, instead of one continuous one (probably because of the theme). Perhaps it's also interesting to add an eraser mechanic.
The first level with the door on the island above you, was a great way to teach the technique of drawing cradles to move the chicken upwards. I made it to the level pictured below. I believe it's quite close to the last level, but I didn't count the levels and there is no text showing what the current level is.
