In general, I suppose, you should work the framing. Just looking at your first picture, I identified multiple errors. If you intend to photograph for stock, you should do a minimum of clean-up before the shoot.

Those cleaning tools (cloud, left) are nice to have nearby, but they do not add to the attractiveness of the picture. You can't cut off your picture with the bowl cut-off and the hands cut off. The best would be, having the baby's face in the picture. That will make your picture marketable. The same with the bottom of the picture. I would expect the stool to be completely in the frame. That white board to the right needs either to get cropped out, or moved away.
You should be able to stage this picture completely, if you want it to be a success on stock. You can be sure that the baby will be a zealous participant in this. It will eat as messy as usual, if that is the intent of the picture.

Cropping pictures is an integral part of the picture processing. If you want to stand out of the crowd, it is important that people's eyes stick to your picture, when browsing. I understand well, that your pictures are snapshots and were not intended for stock at a first stage, but I would recommend, if you intend to photograph “models” for stock, that they get minimal preparation, like a little hair comb.
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