I've made a Cohost page for posting art. You can find it here. I'll still be posting art in the usual places, so you won't miss any more than you've already been missing. In fact, I probably won't upload as much to Cohost since it seems to be lacking in features compared to Newgrounds and Tumblr.
In terms of what kind of stuff I'll be posting there, you probably won't see anything more explicit than what you've seen on my Tumblr page. That is to say, no pornography or sexually explicit content (though suggestive stuff is not off the table), and intermittent violent or gory art with appropriate warnings.