A super photo of these Roe deer. I see these from time to time here in England, but they are very shy and skittish - most of the photos are of their white backsides disappearing into woodland! With this photo I particularly like the way each of the deer is looking in a different direction - I wonder if this is a sort of herd instinct, covering all bases in the watch for danger and predators.
This is very nice, partly because of the even green background and foreground. They were very aware that you were there. I see that you shot this at 500mm. That makes the depth of field very evident in the grass around the deer, which is nice too.