Hey! There was already a bunch there which was honestly kind of surprising to me hahah
But I just uploaded some hi-res versions of the logo png and game icon plus I made a few other options for grid icons and hero pngs! (my name on steamgriddb is tackylamp)
It's funny because right after your first response there then popped up a few on SteamGridDB so I guess it was just a matter of time, thank you for uploading your versions too!