Ah Ha! My specialist subject
1 - Ballan Wrasse
2 - Pollock
3 - Yes, another Pollock
4 - Cuttle Fish
5 - Ballan Wrasse
6 - Mermaid's Purse (Dogfish Eggs)
7 - Yes, well done - A Triggerfish (we only get one type)
8 - Pollock again
9 - Red Mullett (pretty rare)
10 - Bib (similar to pout, but have the vertical bars)
11 - Looks like a wrasse feeding on a wrasse (canibals!!)
12 - Pipefish
Well done, some good photos, Id green you, but I need 1 more post...
If you want to learn more I have a shed loads of books you could borrow.
Another good resource is here:
Home Page of the Aquarium Project
Adam