Necrophilia is a dead niche.
Defiling the deceased sure is high on the impious scale which is part of its charm but alas with the rise of zombies (as trope), even those who are into it tend to prefer at least some kind of reaction rather than a fleshdoll. Personally, I'm not much against it, not more than against any other sexual crimes.
On the surface: Don't do it!
On F95: It's just fantasy and a necessary evil that is not really evil because no one is harmed, the economy even benefits more than it would from totally tax evasive enterprises.
To make an outstanding piece without relying on zombies or ghosts, there are basically two ways: Go to gore or be really kinky and, regardless of choice, be creative. Based on the screenshots (excited LI?) and tags (romance), the latter sounds like a fine idea in the making, basically an absurd ménage à trois. Don't just stop there though since there should be many toys and toys to play with.