Great images. Really like the mansion location you used.
I like the second and third sets better due to the wardrobe change. She looks better with the darker wardrobe. The first set, the light dress accentuates her light skin tones too much. The first set images are fine, I just like the second and third set better.
Also like the 2nd & 3rd set better. Maybe it's the flower in the hair and black heels in the 1st that I'm not to fond of. In the 2nd and 3rd set she also just appears to be more approachable. Cute girls and nicely done.