Honestly? You don't seem ready for a paid shoot. These are fine in terms of focus, and in terms of being snapshots.
1. Crop doesn't look intentional nor standardized, kinda yellow tinted, face could be brighter, lacks color pop.
2. Background is blown, distracts from foreground, which is also not well lit. Could use fill flash or some post processing work to brighten foreground. Crop again, doesn't look that great, with subject in direct center.
3. not the best black and white conversion. kind of too gray, with no bright spots. GAP logo is too prominent. Hands are cut off.
4. Hand and hat are cut off. Similar backlit issue (though not as bad as before). Kid looks like a GAP ad, and isn't looking at the camera or something significant.