Sorry for the late reply. I was on Vacation. That is fine, as long as you leave the credit on the picture saying I made it. Past that if it is your character I personally am ok with that. Thanks for asking.
As long as it is not Levar, that is fine. Cause no one on the internet world knows anywhere near enough information about him to use them fully as their own character. Though I know some who have tried but it completely ruins him when someone else tries to play out him.