I've seen confo threads talking about horses with upside down (I think that is the right term?) muscling in the neck and from what I've read it seems like generally it's developed from bracing against the rider, not properly using the hind end or whatever.
Since starting to read up on conformation I've been wondering about this mare's neck... is this what would be considered somewhat improper "upside down" neck muscling? Or does it just sort of look that way due to her thick neck? Or am I just seeing things? She has been off steady work for like four years and has only been inconsistently worked for a few months of the year during that time.