Individually, Mark, each of these images carries its own weight (though the middle image is probably the weakest of all three - it SEEMS to be less sharp and the obvious Photoshopping detracts from the overall image, IMHO). #1 could use a bit less headroom, but I really like her expressions in #1 and #3.. looks like she's really having fun with the shoot.
But, when looked at as a series, there are some issues that become more apparent. As Gus indicated, color balance among the three should be closer to each other, since it appears that they were all taken in the same location and under what looks to be similar lighting conditions. Also, I'd expect the skin tones to be similar, as well, and they're not. That's distracting, when you view the three images as a series... less so when you look at each individual image.
As far as the logo goes.. I'd suggest you find one you like and stick with it. The different style, and the one image without a logo, distracts because it's something that's so obvious. FWIW, I'd go with one that asserts your copyright, but your mileage may vary from my tastes.
All in all... nice images individually, but ya gotta work on that consistency when viewing the three as a series.