Cool art. I use Unreal, and I do think that for me personally, I prefer just models, not Blueprints with built in functionality. But, that's mostly because I enjoy doing things like adding functionality to models, such as making a door system. It also helps because I can better integrate it into already existing systems in my game. I don't really need any specific assets, but I would suggest trying to make a complete set of art for a game to allow for better style continuity. (Weapons, characters, etc.) I do get that some of that is very different, but it probably would be best. Also, don't forget to upload your art to engine specific marketplaces as well as itch, since that's where most of the traffic for assets goes.
Thanks for the detailed reply and for mentioning you prefer “just models” without built-in logic / Blueprints – that’s exactly how I like to structure my packs: clean modular meshes, a few example prefabs, no forced gameplay systems so they’re easy to plug into your own logic.
I’m more of an environment / level artist than an “everything” generalist, so I aim for complete environment sets (architecture, interiors, props, foliage, a consistent style language). I’d rather push quality in one area than spread it thin across weapons or characters.
I’m also seriously thinking about going deeper into Unreal – next year I want to build a tool for migrating whole Unity projects to Unreal without having to redo everything by hand. If that works out, I’m planning to drop several big packs on that engine as well.