Not accepted due to quality issues

I did not take your assets to Photoshop and check them at 100%, but I looked at this one: 

If you can tell me, what is written there, you are great.

If you are new to stock, you should consider these resources: https://helpx.adobe.com/stock/contributor/tutorials.html
Please read the contributor user manual for more information on Adobe stock contributions: https://helpx.adobe.com/stock/contributor/user-guide.html
See here for rejection reasons: https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
and especially quality and technical issues: https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html

A few flaws highlighted:

I'll pick this one: A Person Lifting Weights. No one is lifting them. They are floating in midair. 

And this one: A Person Engaged in a Hobby. She's holding her brush upside down.

Girl with Pet: What kind of pet is that? A rare breed, apparently.

There are many other issues beyond what I've mentioned, but it only takes one to justify a refusal.

Finally, I can't emphasize this enough: No square aspect ratios! It screams AI and leaves nothing for the buyer to crop or add text.