this also isn't an AAA title

This is the understatement of the day! Even the smallest game developer/publisher shops have not just teams of developers, but teams of artists, teams of content managers, teams of QA/QC testers, and so on.
We have basically just one developer volunteering some (not much) spare time. Almost as much as Moto needs more miners, it could use some more and more varied skills applied toward it.
But I don't think we need prime graphics. If there was a graphic designer helping us... It would be cool, it would probably get a few more players, but I don't think that's a must. At least for now