Well, shit. This is not what I wanted to see today:

https://www.gurochan.cx/3dcg/res/38981.html

So that means at least for now, gurochan is not an option to post your art any more. :(

So, what now?
I think lolicit is the best option going forward, it's really the only option left. Of course there's pixiv, but everything is censored on pixiv, and at least to me it never feels like a community over there. I know the reputation system on lolicit isn't great, but once you get full member status it's a great community in my opinion, you already have a lot of fans there. And as an artist it won't be hard for you to get the necessary rep, by the time you have 20 posts that should be no problem at all.
Also for any fans who aren't already on lolicit, while it is some effort to get full member status, I think for anybody who is able to comment here regularly it won't be that hard to get there either.