needs work...
you have an ok st art, but here is what i'd change...
1) change the shapes to graphics so it looks nicer
2) the yellow dot on a white background makes it hard to see, change one of the colors or make a background that is not pure white for easier sight of yellow ball.
3) music would be nice also
4) sound fx also
5) other than that make it a little more appealing in all areas and u'd have a nice little game.! :)