Has potential, needs polish
This is a good effort for a first submission, but for the full project I do have a few recommendations. My main criticism is that the images do require some clean up, as there are points where you can see lines that probably shouldn't be there. Also, I would advise to add some motion to the backgrounds, compared to the animations of the characters, the backgrounds seem dull. However, there is a lot of potential here. You seem comfortable with the program you used to draw, and the sound effects were quite good. Again, all that you need a bit of polish and the full product will easily be something I'd look forward to.