Storm comingby
snafflesComment by macrothing: 
Critique Club Critique
First Impressions
The centered composition isn't showcasing these two well. The title confused me because of the subjects. I gave this a 5 during voting.
Photograph Information, Technicals & Composition Review
As mentioned, a much tighter crop on the left to get these two more in the frame would have been better in my opinion, or even, a bold crop, chopping half the mother and going for a square or even vertical type framing, may have produced an interesting image as well.
The poses of the horses and the angle are not reaching the full potential perhaps available to you - but I wasn't there, so assuming a little.
There seems to be some haloing on the edges, perhaps oversharpening in pp, not sure - could just be resizing issues. With your title, the clouds/storm are not very prominent or showing any particular form. They do not feature enough within the frame to see all the drama too them.
There is a tree, far left in the background, that looks almost 'grey'... not sure what is going on there.
Comments, Score & Placement Review
255/403 and a score of 5.48 is circa middle of the road for a Free Study. An average of 6.0 from your two commenters (when one apparently didn't vote...) shows that they thought this image above average (as a general rule).
Summary
The image as is, with a variation in crop and perhaps some subtle 'pushes' in pp to gain a little more boost, may have given this something extra. If you get another opportunity with these two (or even one of them), perhaps experimenting with different angles, especially trying to showcase selective features may produce an interesting image.
Photographer found comment helpful.
