I want to say it's the same sentiment as the Zelda and Stardew sets, but I'm just not sure. I wish I new more about asset packs... I never really buy/download them because I'm adamant on making my own art. I am a growing pixel artist/animator, so maybe I'll think about making some one day...
Also, I just remembered how similar my game looks to Pokémon... I guess we're in the same boat!
I'm glad I was able to give you some extra confidence, but maybe I'm thinking too much like a game dev lol. Audiences for asset packs are probably different from audiences for games; Maybe it is just the audience, like you said. Perhaps selling to gamers, or both gamers and game devs, will give your skills the attention they deserve!
Going more generic or stylized is a good idea... Making generic monster/trainer designs with your quality skills can help a lot of people, and likely draw more interest.
I admire your goal of helping other people get into the field! They'll come around :)
If you know that your work has potential to be great, then it's already great. It's your faith in your work that will bring you success! While it's true that other devs will want to make their own work, it's never a bad idea to offer others a hand (especially if the art is as good as yours)
And please don't leave itch... then what would I use as inspiration??? T-T