Very badly bridging saddle with a lot of pressure in the front and back of the saddle and next to no contact in the middle. This kind of poorly fitting saddle can create long term problems for the horse.
This scan showed a lot of pressure under the stirrup bar area. All flocking was completely compressed in this area and created these pad pressure points.
This saddle had a too tight tree and put all the weight towards the back of the saddle.
180 lbs rider who is riding very heavy left and has compressed the panels unevenly under this saddle. This shows a lot of pressure on the left which even radiates across the spine. No clear gullet clearance can be seen here.