I think we have no "visual" proofs of it, back hole are invisible, we can 'perceive them' by seen something passing being in disapearing, that's it. Maybe you mean a picture of a black hole vacuuming a planet or a star? This is also from our faith and theories: that black holes sucks the stuff around them, I'm very not shure that you're going to find nice real photos about that, maybe "radio" photo, but nothing beautiful as a painting from a space-artist...
