It IS a happy accident!
No the bottom should not have a hacky, ugly reflective surface.
Whaddaya mean ONLY in the eye of the creator?
Nobody else thinks this looks good, please read what I said before.
Please work on your modeling skills more before you release something else. I'm not trying to diss you but you need a lot more work before you're up to par. Also, make something a little more useful. We don't need any of these pointless portal props that do us no good, its a good start but don't release everything you make. Sometimes its better just to practice.
Think of it like this: An artist might sell his grand paintings, but he does not sell his doodles.