I doubt if people who really pay to support you will be that upset that someone else can see it for free but let's say in low resolution or maybe even in full resolution because they pay to support artist not to see his works.
thus us not about inability or unwillingness to pay, the internet is full of various artwork and it just makes no sense to pay for more.
The only thing which upsets me here is that I cannot see how well you made that gutting stuff. Judging from the last available picture you do not try to achieve much of realism.
And considering your choice of censorship which is essentially animal goatse it is quite disrespectful too, because you are clearly saying that "if you don't pay you can suck my ass" you could have just used low res or watermarked images without making attempts to insult your "potential customers".
However, my intent is not to argue about how you make money but more like a question if you can make any decent income that way.
I am also doing 3d artwork and obviously know how it is all done. But like I said earlier there is very little interest in 3d renderings, unlike hand-drawn art and like you mentioned it yourself not that many people are going to buy it. But setting up an account on patreon exposing your true identity on the internet, throwing away most of your potential fans just to get few extra dollars seems not worth it.
I was considering making patron account myself too. If it would be possible to get at least 50$ a month without alienating people who are not willing to pay it would be pretty nice free income. I have no desire to put a paywall, but accepting donations or commissions is nothing wrong. Another problem is that patron may not allow loli content.
It is quite a surprise that you are actually paying for 3d content. I guess you must be spending more money than you get.
I would be pretty happy to discuss our art techniques and brag about our computers and other stuff but this is another topic.