Hey all. just wanted to kow wat i could have done better

Horizon must be level. This is very basic composition knowledge, so I too recommend that you join a photo club or take classes. Adobe are looking for world class commercial photography by experienced photographers. A cool snapshot doesn't make stock sales. It's not an easy route to money for anyone who can point a camera. Sorry to be harsh, but it is best to know this.

What do you expect from us?

The first picture will be refused because you used that fancy portrait mode, basically destroying the usability for stock. In addition, the saturation is too high. The image is full of artefacts:

Second: there is colour banding, the sunflower is underexposed.

I wouldn't look into all your pictures, this is not a photographer's school. You should join a club or take courses before thinking about a career as a photographer. My guess is, that if all your pictures are like this, they will get refused. If all are flower pictures, you will have very low sales numbers.

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