I was very lost for most of the game, but I'm glad that I read around for the solution because the moment the mirror activated was really cool! Overall nice use of effects for such simple graphics
Like others said, the game is very obtuse.. I think for the first few challenges you should ease players into the game - for example, have some unique shape for the mirror (e.g, elipse like you did later), and have this exact shape at the start so people know to drag it there.
Very creative game, and I see a lot of potential!