Works decently, due to the nature of trying to get the x-ray effect, many attempts will have a person sticking out or other shenanigans, so just keep attempting/modifying tags.

Prompt examples:

Front view (Use face description tags)

• breeding mount with someone inside, in breeding mount, from front,

Side view

• breeding mount with someone inside, in breeding mount, from side, fetal position, transparent

Behind view (Use tags like anus, vagina or feet)

• breeding mount with someone inside, in breeding mount, from behind, fetal position, feet, barefoot,

Tags to use

Sex from behind - In any view this should get someone fucking the character from behind.

Fetal position - Not necessary but may help get the character fully inside the mount.

Transparent - For those side views or front/behind where you want to see the whole character.

In glass case - Instead of "in breeding mount" things like this can help change what the breeding mount looks like.