Historically Correct Dino-Rider

For A Friend.
"Can you make a picture of me. Riding on a dino. With Thor's Hammer in one hand. And a world destroying comet in the background."
Ok. Done. Are you happy now you greedy bastard?
(For the Internetversion I used the face of another friends rabbit, with his permission of course.)

I used some Megascans-Models, gras from the grasessentials from blenderguru, some materials from the cycles material vault, some custom materials.
The basemesh of the dino is from blendswap:
https://www.blendswap.com/blends/view/40737
The hammer is also from blendswap:
https://www.blendswap.com/blends/view/74060

Most of the 16h I spent on this peace were spent on the composition. Not my strong point.
I had problems getting all the elements into the picture.