If you train your slave properly, you can expect to see this kind of pride on it's face after an intense session of abuse because it's position in life is so thoroughly reinforced that it finds it's purpose in serving and accepting daily punishment.
Klaras hypnosis training is moving forward. She now reacts flawlessly to commands "down", "up", "look at me", "quiet", "loud". Being a former horse racer, I don't expect it's the legs that will break first if I leave her down overnight.