The second deer is only 1.5, and he is not that big for a 1.5. But then again the deer could be smaller in your area than most.

1.5 year old deer range in size just like 5 year olds... The main thing that I noticed from the picture is the lack of muscle definition that deer get as they get older. Carbon Slinger is %100 percent correct.

One last thing, to get a true answer, you need to show the pic to people that are familiar with the deer in the area.