let me just say this.
A horse with good conformation [that is very proportionate] you can measure from their ears to their withers [the length of their neck] and it should be exactly the same as their withers to the highest point of their rump [where the large rump bones are]
Meaning, by the looks of the pictures, his neck is kind of long for his body.
Other then that he is REALLLYYYYY cute. He has SUCHHH nice coloring!!!!
You can tell a gelding, you can ask a mare, but you must discuss it with a stallion.