Glad that you got some feedback 13death. I think a little encouragement and some helpful comments can be good. It is a balance, so artists have mentioned here though.
Well, as long as you make it clear that there is a connection between your witches and the black roses, it should be fine. The best decks have an integrated vision.
A little bit off-subject, but you'll want to make sure your deck name doesn't come to close to a copyright violation. You've got 3-for-3 on the words in the title:
oh i forgot about that comic book... hum.. how do i need to change the name so it wont be copyright? just go back to the first name Black Rose Tarot?
and as for the images i will as soon as i find my printer cords. i think my sisters fairys hid them.. :/ guess i should have my dragons take care of them lol