Great work as usual Khaled
However here are my comments, and please don’t get it the wrong way.
No one should disagree with your design if you want it to be that way
However for some improvements I would recommend the following
The head is too small, even for an Arabian horse, and I know the fact the smaller = prettier for Arabians
I’ve seen many classic paintings for the Arabians and they all exaggerate in the head size to make it more desirable. If that’s the case then ignore my remark.
The second point is the position of the horn, anatomically it’s too low and too big for the head size.
However you captured the neck and the pasture of the Arabian very well
Great job mate