I completely agree with what you said. Right now the puzzles are either a strait line, or dark levels that are also almost a strait line. Can't say I'm proud of the puzzle aspect of the levels I made, I'd for sure have loved to have more time to create real puzzles that require a bit of reflexion, but too late to fix this now sadly.
The drawing-style placement you talk about is actually a feature I wanted to squeeze in right before the deadline, but I was taken for something else and it couldn't happen. This made the level 01-06 especially bothersome to play (and I even shortened it mind you!).
Thanks a lot for playing my game and leaving a review!