Illustration rejected for Technical issues - anyone any ideas why?

[Weird Art]

Hi, I am new to using Adobe.  I am trying to get a painting which I have edited in Illustrator accepted but it was not accepted due to technical issues.  Can anyone advise?  Thank you.  I uploaded a copy of my painting as a jpeg photo and then added effects to make it look more like an illustration.  I uploaded it as a jpeg file to Adobe - could this be where I went wrong? Also I think I need to remove artist signature at the bottom.

[Abambo · Accepted solution]

The answer is found here:

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

In general photos that have been thrown through a filter do not pass well with Adobe stock.