Black foots---huh, you mean bluefin lions (paraheratura), common names are great---aren't they
Blue fins are a cold water lionfish, that do VERY poorly in the home aquarium.
Very cool looking, but for whatever reason--just up and die even thou they feed well.
So my recommendation---skip em.
Next Fu man chus, love them, -- but they are the pickest lion to feed (they require lots of live food, preferable live ghost shrimp_, and are difficult at best to wean over to prepared foods. They are quite shy fish and spend most of the day hidden. Lastly, they walk instead of swim and don't really compete w/ faster swimmers for food.
Thats said, if you have a smaller tank and want a centerpiece fish that you plan on feeding live foods too-- their great.
As for photos.
Do a google search for "lionfish info sheet" your first hit will have all the photos of both species you asked for