the focus was very soft and fuzzy across each image. is this a function of the low resolution?
Probably. If I look at your image at my monitor's native resolution of 125ppi the photo is 5 3/4 inches wide and it looks fine. But at full screen (20 inches wide) it is only 35 ppi which is not enough to render much detail.
Plus the conversion in-camera to a jpeg may not have helped.