So I tried printing that "rest" shot at a larger size (roughly 12"x18"). At normal viewing distance, such as 4 feet or so it looks very nice however on closer inspection it was significantly less sharp than I expected. A look at the metadata made me realize that it was actually shot with my old Nikon D50 and with about 1/3 cropped out it is a little stretched at that size. This might not be the best place to ask, but have you had any success with uprezing/upsizing the photos and then printing them again? Do they look any sharper?