I think that VV is right and that you'll probably need to curate a bit more. It might help to try to find a more narrow audience. I've only recently started sharing my art online (
here's my twitter) and I've noticed that different content can get pretty different reactions. Anecdotally, my most recent piece on twitter (a picture Minerva from Fire Emblem) has been seen 61k times, has been interacted with 5k times, but only has around 700 likes. For the ZeroRanger pic, it's 14k, 1.7k, and 200, respectively. For the Animal Crossing screenshot, it's 650, 27, and, uh, 1.
I only had around 10-15 followers when I first posted each of them. I think you might be able to draw some conclusions about the content, though. The AC pic is in a category that receives a
ton of traffic. With only a dozen followers, this was probably lost in the sea of AC content. The ZeroRanger pic did much better -- I got a retweet from the developer the day after I posted it. This probably only happened because ZeroRanger is incredibly niche, so it had far less "competition" and has a relatively small audience that is excited to see any content for it. The Minerva piece did even better, and I think it's because Fire Emblem is a nice balance of popular, but not so popular that the hashtags are completely flooded with content.
To really illustrate what I mean about narrowing the audience, though: I shared the Minerva picture with some Fire Emblem subreddits and received
way more of a response than I did on twitter. 150-ish comments and something like 5k combined net upvotes or whatever. It's one of the top 10 for the last month on the Heroes subreddit now and it did pretty well in the main FE subreddit as well. It was very encouraging. I'm sure there are probably communities dedicated to sharing photomode screenshots for various games that you might want to give a shot.
Visual art that no one else sees has no reason to exist.
I kind of disagree with this. I make art mostly for myself -- I've drawn probably hundreds of things that I've never shown to anybody.