Thor vs. World Snake Picture

This is a piece from my the concentration portion of my AP studio portfolio for last year. My topic was Norse mythology and in this piece I depicted the face of between Thor and the great world snake at Ragnarok. In this case i've depicted them battling amongst the roots of the universe tree Yggdrasil. mostly because it was easier and I was running short on time which is a terrible reason but I do apologize for inconsistencies with myth. I'm no expert.
Sigyn & Loki
Thor vs. World Snake
Fire Birds