posso capire che le immaggini non rientrano nei vostri canoni ,ma dire che ci sono problemi d esposizione , forse non ha capito chi di dovere che è un controluce voluto e localizzato per evidenziare l oggetto . Credo che sia normale che un gioco di luci crei zone più sottoesposte ma senza avere aree totalmente bruciate,per tanto non condivido propio questo giudizio dove si dice che è un problema d esposizione!
I think you'd better publish your request in English here, because translation tools work very poorly and your request can't be understood well. But...
I think, without taking into consideration of possible technical problems, if you generally ask yourself the question: which buyer might have an interest in buying this picture and how, and for what purpose could he use it commercially? To sell lemons? To separate a slice of lemon and integrate it into his picture? I don't think so...
I think it is extremely important in the production of pictures for stock agencies to consider their usability in terms of quality and a useable message for the buyer.
It is absolutely not helpful to you as a supplier and beginner in the field of photography and stock market, from your personal view on photography to doubt unfair rejections by the agency. It also doesn't help you if your picture might be accepted and it doesn't sell at all. It is a waste of time and energy.
Your basic knowledge of photography, image design and the microstock business should first be put on a solid base and then there might be more acceptances by the agency and maybe some sales.