So, come to think of it, the number one question you should asks of yourself of your creations is, "Do you love them?"
I sure do! In fact, I think the scientific realism only opens up a vast new world of possibilities - but there's a lot to be said for fantasy, of course. The reason I've been recently rather inactive is because of a fantasy world I've been constructing, actually.
Oh, and blank space is honestly a terrible idea. It takes up too much space and makes images look amateurish. I can tell it's scanned from the pencil marks; you don't need the snow ghosts.
