Ok, even though I don't know much at all about this, I'm still going to give it a go. I might be totally wrong...
Front end: scapula, humerus, and lower arm.
Scapula and humerus junction should form a right angle, and all three bones should be of equal length. In your dog, I think that the shoulder angle is, in fact, near 90* and I would guess that the scapula and lower arm are very close in length. For me, it appears as if the humerus is just a hair short, but that might be an illusion from your dog's head being low. Overall, angulation is very nice and the dog should have good range of motion.
Back end: pelvis, femur, and tibia/fibula.
The femur should attach to the pelvis between 90 and 95* when in a stack. Note that the pelvis should be around 25 to 30* from parallel to the ground, which defines the croup angle. I think your dog has a nice long (but not too long) croup with a low tail set. Angle seems very good. The pelvis to femur joint and the femur to tibia/fibula joint both appear to be 90-95* which is very good. I think this would be called "good angulation rear."
Pasterns appear strong. Feet look tight. Strong head, beautiful ears. I see the dip behind the withers, but that could be due to her head being lowered. Also, I don't yet know how to critique the withers or topline. With her head up, I think her withers would be slightly sloping (which I think is correct).
Beautiful dog! She has a very distinguished look to her.
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