I like your polished and clean looking games. Could be near as good as the originals were. Seems to me that you were cutting your teeth cloning games designed by others (gameplay /art). I don't think you can effectively compete with a copy cat product that is not at least twice as fun to play. So.. maybe its time to exercise your imagination and create something original. Even if it sucks in implementation and it does not become a commercial success you will be happier because the design is yours alone. for
Cheers - Here is my inspiration game site - oppisite of yours. I starte with a vision... like this trailer “Navigating Plumeria Isles” https://www.youtube.com/watch?v=4N2lB7-RVIM
I created last weekend, then build from there. Its unconventional but so is the result. Might help it stand out in the hobby crowd. My games are rough around the edges and will make your cpu shriek in pain but the proof of concept is there http://www.3dnld.com/
And no... I have not been picked up by a publishing house... just persevering as a hobby game developer. Even a +1 is enough to spark a thrill enough to continue.