The cat is really great. Just the perfect amount of focus for me. Like the contrast and like how I can feel the cat's fur with my eyes. The 2 highlights on the color are unfortunate. Other than that, I wouldn't change anything.
The preggo shot is nice. I'm bothered by the cropped off index finger, and that the body doesn't quite touch the top margin of the frame. Makes the body appear sort of "headless"
#3. They kinda look like cardboard cutouts... flat. For example, the edge of the man's face.
#5 looks like a fun picture, but I'll let someone who understands wedding photography comment on #4 and #5. I don't really care for these much.