A paint is of quarter horse breeding. Quarter horses who have stockings that reached above the knee/hock, had white larger than (don't recall...a quarter?), and who had what was deemed too much white on their faces (behind the eyes or down the jaw) were disqualified and not allowed to show or breed. Hence, the paint horse association.
AQHA now allows more white in shows but the horses cannot be used for breeding.
All other horses that people often refer to as paints are pintos unless they have qh in their background.
So...the face you posted? Depends on if it's a qh and if the white goes too far to be accepted by AQHA.
To be a paint, a horse has to be of quarter horse or paint parentage and be either white with dark patches or dark with white patches on the body. I think there is a requirement for the amount of horse covered by the patches because my Red has a white bear paw on his back, but he is not considered a paint.
It can be considered STOCK PAINT, SOLID PAINT.
It could be in bloodlines somewhere,
I am not into bloodlines though, I don't care about breeding, bloodlines, STANDARDS, money.
If it looks like a horse,smells like a horse, its a horse.
Any horse is fine, even if it is crossbred.
Some solid paints, stock paints, have odd markings on them.
Even if they aren't REGISTERED.
Any horse that is a product of two registered (APHA) Paint parents, or a registered paint and a registered quarter horse, or a registered paint and a registered thoroughbred, is registerable as a Paint, regardless of color. If the horse comes out solid, it is registered as a "breeding stock" or "paint bred" horse. In order to qualify for Regular registry, the horse has to meet the bloodline requirements above AND meet certain color requirements, meaning that it either must have white marking on its body that exceed a certain size, or have facial markings that extend past a certain point on the cheek, or have leg markings that extend past a certain point on the leg.
It can be confusing, does that help at all? (I used to work at APHA!)