It seems no problem at all, but may there be some underwater stones, which i don’t know about, and more experienced users can enlighten my ignorance
Won’t there be some texture baking issues later or something like that? It seems silly to ask such questions, but it is better ask once than waste time for models remaking later.
For example i have a high poly and low poly models of belt. Can i remove polygones from inner part of low poly model, where camera never see them? It would greatly reduce number of polygones, would allow to make more simple UV, and seems no problem at all.