Here are some of my favourites...
Adora and Seahawk (SHE-RA)
Battle Armour Skeletor (HE-MAN)
Egon and Jeanine (THE REAL GHOSTBUSTERS)
Peter Venkman (THE REAL GHOSTBUSTERS)
Jawesome (STREET SHARKS)
Jill Valentine (RESIDENT EVIL)
Lizard Man vs Stinkor (MOTU)
TMNT and Street Sharks together at last!
Mondo Gecko (TMNT)
Mutagen Man (TMNT) - This is my absolute favourite piece by Mike Bock because he was my favourite TMNT Action Figure.
Mutant Surfers - Toxic Crusaders & TMNT
Sewer Love (TMNT)
Spirit vs Croc Master (GI JOE) - Croc Master was my favourite GI JOE Action Figure
Splinter vs the Foot Clan (TMNT)
The Cosmic Enforcers (MOTU)
The Death of King Randor (MOTU)
The Hunt for Skeletor (THE NEW ADVENTURES OF HE-MAN)
Man-E-Faces - The Monster is Taking Over (MOTU)
The Punk Frogs (TMNT)
The Return of Megator (MOTU)
The Slime Pit (MOTU)
The Toxic Avenger/Crusader
Pizza Face (TMNT) - My second favourite TMNT Action Figure of all time!
Head on over to Mike Bock's deviantART page to check out the rest of his stuff. I wish I had more time and room to post ALL of his artwork.