Who has accused you of low-quality photos? You have been told it's something to work on. Your photos are not particularly bad for this site. Almost anyone here would do well to improve the quality of their images.

Besides, you shouldn't waste money on a real camera in hopes of getting an immediate boost in your income as a result. It doesn't work that way. The quality of anyone's pictures has much more to do with their photography skill and how interesting the subject is than the gear.

When I suggested that you improve your photography I didn't mean yours are particularly badly in need of improvement. There are many content creators here with much bigger issues.

This DPorn. You have to try and create arousing content. One aspect of that is variation. I'm personally a little tired of always seeing the tits and from the same angle.