Here is my interpretation of the Nova Corp.
Nova (Hasbro figure) - Painted accessories in metallic gold
Nova (Large Male) - Hyperion figure with Black Knight head and Hawkeye belt
Nova (small male) - Patriot body, spider-man arms and legs. I removed about a 1/4 from each thigh and reattached with set screws since, I wanted a shorter figure. Head is a sandman head with a hallowed out darkhawk helmet and Black Widow Belt.
Nova (Medium male) - Male buck with Captain Britain head and Zemo belt.
Nova (Female) - Psylocke body, Bariss Offee head with hallowed out Black Knight head, Black Widow hair and belt.
Thanks for looking.