I am completely amazed at the painted belly... I'm sorry, but that is (as you say) one of the tackiest things I've ever seen in my entire lifetime.
WOW! They paid for that!?
As to the photos, they're not bad, but could be better?
#1 seems super contrasty on my monitor. The heart hand thing is also overdone, but apparently they like stuff like that...
#2 Nice shot, but not really a portrait, per se?
#3 I actually really like this shot. Like the color of the wall and the simplicity.
#4 Again, a bit cheesy but works for a lot of people I guess, just not me...
#5-8 I just can't get over the belly, sorry. 
Overall, the photos are pretty cluttered. There's a LOT going on in the backgrounds and I would recommend a larger aperture to blur the background some more. They look more like snapshots when they're so busy and everything is in focus. That's probably why I like #3 the best, because it focuses on them and not everything else. The painted belly is also distracting but that's just my .02. 