I rendered my piano work in a different visual, which gave me insight I will run into some problems with left hand and right hand colliding. I am more of a composer than a pianist unfortunately, so sometimes I come across that. But regardless of that, what do you think of this one?

I somehow feel the melody already exists, somewhere. probably some famous tv show which I somehow forgot. Anyone have an idea? Or other tips? I tried to incorporate another melody and some variation, but not sure if this works. Ideas apreciated!