Notbad
Why milfs? These do not seem like a milf, just some female characters. They represent no features to show they are mothers or have been mothers. They are all drawn in a young fashing without wrinkles, scars, or imperfections. Having children isn't a walk in the park, so I think you need to add a few imperfections to these "LADIES". Nothing drastic, just something to make them seem like a mother. Anyone can be a mother, any age, but I would like some more details to establish this here. This also really needs a background, a simply color is okay, but you could do so much more with a setting in the back or even just something of a pattern. Your facial expression design is good tho, it reminds me of Steven Universe and has a unique consistent flow. Your eyes are particularly good. I think you are talented but just keep at it and things will improve.
~~THINGS TO IMPROVE ON~~
Work on more details and adding a background.
~X~