I think what the previous posters were trying to say is, that we feel that the graphics could do with an update since these are all used in another game. You should throw a little originality into it rather than making it look exactly like another one. Most of us don't have the time or knowledge to code an entire engine by ourselves, so we make up for it by changing the graphics and gameplay in a way that will make it stand out as opposed to looking like another game.
So why not try making your own graphics for it and putting more of a unique twist on the game? I think people would appreciate it a lot more that way. Though I agree with Rossay, and I don't think this one should be in The Showcase just yet.