Wave 2

Arkon - body and shield from Savage Land Ka-Zar, head is from Avengers boxset Thor, milliput used for helmet and boots. Neck armor and lightning bolt from Savage Land Storm, real leather trim for boot cuffs and chest strap, belt is a painted twist tie
Thundra - X-Men 2099 La Lunatica body, She-Force Tigra head, milliput for boot cuffs, belt and headgear, chain is from Ghost Rider
Killraven - Savage Land Joseph, milliput for headband and boots, big knife from McFarlane Wetworks figure, this custom was based off Joseph Michael Lisner's Killraven one-shot
Eros (Starfox) - made from a Quicksilver with milliput wristbands, collar and shoulder flares