Fire male: Trogdoor

Male fire: Trogdoor

vortex for fire wyvern

Fatalis (from monster hunter)

Fire: Scorpion

Lightning: Raiden

Poison: Reptile

Ice: Sub-Zero

Viserion: if fire and cream colored

Smaug

Spyro

Poison: Taco Bell, Venom, My ex

If female thunder:Bronte