There is a nice sharp line between the deer and the background, but the face seems a little soft, maybe over exposed. I think the DOF was OK because I can make out the Queen Ann's Lace in the near background.
Pretty good work - I like the sense of location especially. Either your post-processing or your camera has let you down somewhat though: those stems of grass have turned into badly fractured lines, and there is a tight white halo-ing around the animal's neck that seems like over-sharpening. It has the effect of losing detail for you, and thus that sense of closeness so important to shots like this.