I like the tilesets. However, the level itself is too hard. Not, "the level is actually hard"-hard, but more like "the save points are just too far apart"-hard. There are very few screens that are actually tricky on their own, but the long sequences of medium-difficulty screens without save points are irritating. ("Medium" here meaning basically "hard-level".)
The switch puzzle felt frustratingly arbitrary- even after I had finished it (by brute force), it still made no sense to me.