saludos amigos , me rechazan estas fotos por aspectos tecnicos , algun consejo?

Besides from the bad framing (I had really a difficult time to see what it represents, more of the car should be shown...), the logos on the speakers, the company plate on the house front (both IP), the house number (property release needed), you also have managed to take the picture with a shaky hand. 

In addition, there is noise and probably some other defects in the picture.

As I'm not quite sure that fisheye photography has a big fan base on stock, I'm certain that a picture with a correct framing and correct technical aspects could be accepted.

If you are new to stock, you should consider these resources: https://helpx.adobe.com/stock/contributor/tutorials.html
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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