Dear almighty, this is gonna be tough to say…
I advise that you check nearby posts, and check some of the stickied ones. There is a designated template that most ideas should follow.
To the actual crit, why a sun god? Why not SCP-343 (or at least a replica of him)? Do all deaths after this incident count towards this "sacrifice"? Why does he turn obese, does he just eat all of the sacrifices like a terribly written vore comic? Why would the Foundation have to carry Huitzilopochtli around the earth in an aircraft, would they rocket him up into the exosphere so that way gravity is lessened, and a satellite carries him around? Why would the sun god fly around the Earth anyway?
Overall, please add more detail so that way this isn't just one large misunderstanding.
Cheers,
- v0id