I don't think the minis are worth much these days. From left to right they are Misery, Sloth, Lulu, Sybil and Miss Eerie. I think they're pretty old though (I had a Miss Eerie mini many years ago now!) so you might get £10 each if you were lucky. Misery is an exclusive to Hot Topic so may go for more, but he's missing Tragedy (they came in a double pack).
Not 100% sure but I don't think they make minis anymore, so that may well make them more valuable than they were.
The Lost is definitely a good find. As barbgirl1999 says she's from series 8, and they're up to series 23 now, so she's pretty old. There is another one in a white dress which is a lot rarer and goes for crazy money, but for this one in good condition I think you could get £100 for it easily.