Hi Skhigh,
I think you did well with the skin tone differences...that can be really hard and the colors seem ok. There are so many pictures there and overall I think that you had a great learning experience and gave the family some great pictures. You did well with making the woman in particular look smaller than she is, well done on that.
My CC pertains to the post processing if nothing else. The faux blur that you have in the front of many of the photos is just not desirable at all and it in fact draws my eye away from the subject of the photo to the blur itself. Just about anyone can tell that it's not a natural blur. A couple of examples are in photos 4, 5, 6, and 16. Also, in photo 12, are the bubbles or something by his chin and on his shirt? Shooting people with glasses adds another issue as well...trying to get their eyes and the glasses without the glare. Being that these are such small glasses, you had a hard task on your hands. You did well with some of them and others not as much but these types of things are always hit and miss until you really know what you're doing (which I don't). In photo 13, I'm feeling like there is too much skin softening going on. The skin looks much more real in photo 15. Other than the guy's expression, I really actually like 15 as a fun shot. She made things a bit worse for herself by wearing white but you did well with it regardless. I do find some of the highlights are blown out...sometimes the white is too bright. Again, very hard to balance the tones. 24 is a pretty cliche, normal shot but still a cool one in my book...would have been great if you actually got them in focus. 25-29 are all snap shots...they just don't have anything that grabs my eye. Really like 34. 40 is really nice too.
But my biggest critique is still...watch the fake blur! It's just not attractive. But as for shooting heavier people, I think you did well and I applaud the effort. I'm glad the family is happy with them!