Studie looks great, Dan. The frog peice is very cool too, I think you can push the values a bit more tough. The guy closest to us feels a bit flat, maybe try to get some better value range on him because he is closer to us, and the guys farther away can have a bit more limited value range. Looks like they are in some sort of swamp too so that can be a good excuse to push the atmospheric perspective a bit more than usual due to mist and whatnot.
I hope you finish it tough!