your page looks good enough, and your illustrations looks slick as heck , noice.
well i cant say that my page is a good example, cuz my income came from socialize on … pages…
but something that never fails, is add some lore, make some short stories, and if you like some fun, have some little quickies here and there, personally love some fun with the creations, or just the maker have their fun with their own works.
your work alone is good enough, but i dont really know where you can fully unveil your power.
but making fanart always works, and your style reminds me a lot of games or dark fantasy
[Darkest Dungeon, Dont Starve are a few games that shares, not all, but some stuff of the style you have]
and be open for a few request , of course that is up to you entirely,
be spontaneous too~! that works with people that dont expect stuff so often