I really like watching VR porn while using a hip/torso sized onahole/sex toy, and I would really appreciate content that would make that feel more immersive.
My idea is for the guy to hold the girl by the hips at all time, and avoid as much as possible moving the hands elsewhere (e.g. touching breasts, head, or directly not touching).
Another suggestion would be avoiding positions or movements that would not be possible or would be very difficult to replicate with a toy / sex doll, for example, in a cowgirl position sometimes I've seen the girl having her hips lifted and the guy moving his' hips, which is really difficult since you also need to hold the toy up.
Making it look as if the guy is moving the girl up and down with the arms would be really cool while using a toy.
Loving your SLR originals, keep it up!