A 1/1200 dormant volcano island
My painted example was printed on a Prusa I3 Mk3 with a 0.4mm nozzle and a 0.2mm layer height.
I prime the model then paint with watered down pva glue and sprinkle on fine sand. then i paint, drybrush and glue flock and clump foliage on.
Dimensions are 168 x 134 x 47mm but I imagine it is infinitely scalable.