The audience for original work is smaller than the audience for fan art but it's a special audience that takes a specific interest in YOU vs the material you have made fan art for.
Or another way to look at it: the internet has devalued the worth of an eyeball. When the web first came along, it was exhilarating to find out a stranger saw what you made. 10-20 strangers felt like you had a whole room at attention. It was all through the context of life before the web, where often you worked in private and your work was never seen by anyone.
Things started to scale up and you could publish something to the web and have it seen by 1,000 or even 10,000 people and that was on a whole new level where you were doing something previously reserved for television and radio.
Now of course YouTube and Facebook make a million views look like the norm, basically deflating everything happening on every site that doesn't command that audience.
It all becomes relative but you gotta still enjoy that one stranger seeing what you made. I love checking out everything you make, so I know there is at least one person here who is excited whenever they see your name and clicks to see what it is. I'm sure there are a bunch more. You might get more clicks making fan art but know that people are clicking your original art because they are fans of YOU!
I'll also note... The provocative, sexy and familiar draw an audience but a part of that audience bleeds into the original as well. So all those people who come specifically for the provocative, sexy and familiar may happen to discover you at any given moment. The presence of more popular content doesn't make your content less popular, if that makes sense.
Luwano
It's really unfortunate that one of the most iconic and skilled artists has to doubt wether there is still enough interest in his work. But yes, fanart and adult content gets a lot more attention than any other artworks online. I don't even know what to say about it to encourage you to keep doing what you love, but at least know, that there are many people enjoying your art, people who feel grateful that you put your heart and soul into art so we can enjoy it. I hope you do well, no matter how you decide to go on about your art.
keepwalking
Thank you for your support. These are the things that keep me doing artworks