Personal Level Design Question

[Syzygy]

I won't comment yet on how good or bad your levels are. I will just say that when designing levels the most important aspect is to test them so you know they can be solved. There is nothing more tic-tac-toe-me-off than to play a really excellent level and find it can't be solved. One question to keep in mind when testing is "Is this fun to play, or just a pain?" Difficult levels can be fun as long as they aren't made with rage in mind.