The first two shots are mother-and-baby, studio-lighted, studio-posed, "setup shots". The one-armed baby in the soup kettle is okay...the second studio-lighted mother and baby on dark backdrop is less-compelling; the maternity shot is poor, with an awful background structure, which HE included in the photo that HE shot...it's not very good,and I would never include such a badly-composed shot in a portraiture portfolio; in my opunion, it looks very snap-shotish, and not in a good way whatsoever.
The last of the two pictures, the candid, family group shot...authentic feeling, but has some eye direction issues, yet still, pleasant enough.
With a big family, simple, matching outfits, or simple, color-coordinating outfits makes for a much more-compelling portfolio shot. At least that is the trend of the past 40 years...too matchey-matchey on the clothes looks contrived, but say, red shirts or red sweaters and blue jeans,on everybody...that's what many people want to see in a portfolio.
Also... your photographer seems like a bit of a whiney-ass...He seems to be using you for portfolio development, at some level...if I were you, I would dump him.