[Music] Sonata i composed. Feedback appreciated.

I am a (so i think) beginner and largely self-taught. I think this sonata is okay, but probably there is much to improve. Is it any good? What can i improve? Playability? I'd like to hear your feedback. Thank you. https://youtu.be/BRCehCYRreA

edit: score: https://drive.google.com/open?id=0B_Ip4uQM4QtjYzFtbU96N3ZTRzA