Nothing Special
I gave you a 2 for effort. Mouse mazes are a tired concept and this offers nothing to make it stand out.
Graphics are very important in a game, white backgrounds and grey shape tool boxes aren't going to impress anyone. Look up some things about graphic design and how to use colours effectively.
As for the music, try to get something that people aren't going to recognize. The music should make your game stand out, not remind me to go play kingdom hearts. This will make it look much more amateur.
With programming, I'm glad to see you blocked the right click trick. However you can still cheat by moving the cursor very fast.
Keep trying, main thing to work on is presentation.