Lovely glamour work. I found the tent background distracting in the first set...if you can do some post production work to change the DoF a little, that should help. The second shot (with her hair backlit and tossled) is lovely--really love the pose on that and she's lovely. Second set of shots with the window reflection--remove that ball of light reflected in her hair in the first shot of the second set. Light seems a little harsh (but that's the challenge of shooting outdoors on a sunny day). One other thought...yes, black is stylish and a lot of people think it's their best color. In this case, the black (b/c it isn't catching any backlighting or doesn't contrast with the background, particularly with the 1st shot of the 2nd set, adds weight to her waist. Look at photos where the dress is distinct from the background (either b/c of her top or backlight or backdrop) and she looks thinner. So in that dress, either pose her against a lighter backdrop or hit some light behind her so provide some definition.
Lovely model, lovely poses. And I totally get the "it's SPRING!!! Let's get outside and shoot!!!" mindset.