I just finished the MODEROID Thunderjaw and it's one of my favorite mecha kits.
More pics in my Flickr album
The kit's quality is great, but getting that paint scheme right was a huge challenge.
Thunderjaw has a tail now.
@Gabe Q like @Big s explained it's the Moderoid Thunderjaw from the game "Horizon Zero Dawn". The quality is great & it will keep you busy for some time.