PG, PG-13, R ?

Some people have asked what sort of rating I would be shooting for with this film...Not an R, but probably not a PG. There is violence and there is some blood. However, most of the violence takes place off camera and tho the GARUM is quite monstrous, he exists in the shadows. The SURVIVOR also exists in the shadows and emerges from them only briefly. These days its hard to see why certain ratings are given out. When CSI can show chest cavities torn or cut open but a group of anti smokers want to make any movie with smoking a hard R, it confuses me...