Why they all are what they are:
1. H.incei - Carapace patterning. Everyone got it correct anyway.

2. M.balfouri - Abdomen colour as well as the blue leg.
3. C.brachycephalus - Forward facing horn
4. H.maculata - Colouration
5. P.murinus - Are those bright orange chelicerae?
6. H.gigas (Or probably just Hysterocrates sp.) - Those thick back legs.

7. P.murinus "dark form" - A tricky one to id from the pic, but well spotted.
8. P.striata - Leg patterns
9. P.miranda - Leg patterns
10. P.subfusca - Leg patterns
11. H.sp. "Pilgrims rest" - Carapace colouration
12. A.junodi - Starburst pattern and that awesome colouration
13. P.ornata - Leg patterns
14. P.formosa - Leg patterns
15. P.subfusca - Colouration and the carapace patterning
16. P.pederseni - Leg patterns
17. P.fasciata - Leg patterns
18. P.muticus - Thick rear legs and orange colouration
19. P.formosa - Carapace patterning and colouration
20. C.darlingi - Backward facing horn
21. C.marshalli - Upward facing horn
22. S.calceatum - Colouration and patterning.
Congrats to genio (Oceanblue) who got them all correct.

I asked him to delete his post as soon as I saw it was correct.
Thanks all.
Any other questions?