What a nice capture of a tender moment between a mare and her nursing filly! I like the light and the way it presents the shapes of the two horses. The quadropod stance of the filly is classic! What a beautiful line the curved neck of the mother makes!
The setting is traditional farm. The inclusion of the fence and barn in the background clearly convey that. Though I do tend to agree that the brightness of the white building pulls attention way from main subject. I keep looking at this wondering how it could be even more intimate for the viewer...somehow a different angle of view to eliminate more of the trees...or a wider aperature to blur the setting a bit more?
As far as the challenge goes, I don't know what's on page Hh of the Seuss A,B,C book...probably a horse. But it was the voters who needed convincing, not me.
Overall, it's a lovely portrayal of a horsey moment.
Love all the long leg leading lines pointing toward the action. Wish you could have circled to the left and kept the large white OOF barn out of the background.
There's not a huge reference to the dr here - you could pick any topic cause they all start with a letter of the alphabet. The photo isn't that interesting either. I do like how the srong lines of the fence breaks up the foreground and background.