Horse portrait nearly there

After a couple of days away from the studio including a stint as a tutor at The Marwell Art society's Big 5 art workshop event this past weekend ive resumed work on my horse commission today.i have deliberately chosen to do this drawing in a photo-real fashion following closely my own reference photos as i really liked the angles and effect of the head and neck being thrown forward.i am no horse anatomy expert and so tend to never venture beyond head and neck portraits for my clients but in this case i wanted something a little more 'arty' than a standard head and neck profile.