Asset ideas brainstorming!

Hi,

I finally managed to create a decent 3D model by using agisoft photoscan. It took me a tremendous amount of time, as I am only a 3Denthusiast and no professional.

(Not optimized as I do not want to create such an asset, as the original artist has rights.
Ah and the quality seems to be reduced by sketchfab! Too large file!)
Now I want to do the next step, I want to create an 3D asset that someone would actually buy (using blender and agisoftphotoscan standard and maybe krita).
Do you have any ideas which 3D assets might be worth creating?
I think it is a greate challenge to create an asset and sell it on sites like unity asset store.