The problem wasn't that it didn't look like a clichéd UFO, it was that --as it stood-- there was little visual interest. Someone suggested going with the more classic image of a disc with a glass dome and flashing lights, as it'd make it a lot more recognisable, as well as give you more elements to work with. What you have here is a simple disch with a single extrusion and two dots.
I suspect you're taking the piss, though, and for all i know you might even be someone's alter ego.
If not, just continue.
edit: also, this is apparantly my first post with this account. Hi!