The fugue sounds unstable. Occasionally the harmony gets out of hand, there's little rhythmic continuity which keeps the thing going and the end is rather unsatisfying. What i liked about the end is that the harmony gets better a bit. The fugue also needs to be longer, one gets the feeling that it ends in the middle of nowhere.
The etude reminds me of video game music^^. From beginning to middle it could be out of one of the final fantasy games. It's nice actually, but kind of random. You really think it's an etude? Doesn't sound all that difficult.
You have some talent, but you need to give the music a sense of direction. currently the music is kind of floating out there and i don't know what to make of it.