Vladmiri said:

You know what'd be awesome? If there was such a thing as a criticism_request tag, only taggable by the artist / uploader. I mean, I like criticism, but for the people who don't, it ruins their day to see hours of work, sketching, and colouring summed up into what was wrong with it instead of what was right. It's also the reason I'm scared to post my own artworks outside of Deviantart, where I have a different name for obvious reason.

That would be really great tbh. Especially if there could be a "roughness" scale on that. As said, some artist like blunt, "harsh" comments pointing out the direct flaws, and ways to improve them. Some like a more "overall" review that just goes over what can be improved and what is good. And some prefer only praise on what they did right. (though, the last imo isn't overly effective, but even that would be a good indicator to be "gentle" with any critique. Like, going "you might should give this a look" and link to a ex: pelvis anatomy or so. Instead of going ex: "you messed up the pelvis" or whatnot.

Only problem with that would be that either 1: The artist themselves would have to upload personally. 2: All artists would need to be on a similar list of "critique please" similar to the "do not post" list.