Ähnlichkeit mit einem bereits eingereichtem .......

Die Bilder sind zwar gut gemacht, hätten aber auch eventuell wegen technischer Probleme abgelehnt werden. Normalerweise sind einige Variationen erlaubt, allerdings: Ein Tropfen sieht aus wie der andere, auch wenn es leichte Variationen gibt. Man sollte schon Variationen bringen, die etwas mehr ändern. Trotzdem erstaunt es mich, dass bei vier Bildern drei abgelehnt werden. Da hatte jemand einen schlechten Tag.

While I can appreciate the amount of time to set up and create your shots, I have to agree with Ralph that the images are just too similar to offer the customers a significant choice in variety.

Here is an excerpt from Adobe Stock's guidelines for contributing similar images.

To make money on Adobe Stock, it helps to have a lot of content. Still, you should always choose quality over quantity, and make sure that each file you submit offers something special. Similar content is one of the leading reasons we reject content. Sending multiple copies of identical content can be perceived as image spam, and can result in your account being blocked or permanently closed.

If you are going to submit content that you are concerned might be perceived as similar, submit them at different times - perhaps a few weeks apart.

Here are some other resources that you might find helpful:

• Guidelines for submissions - https://helpx.adobe.com/stock/contributor/help/photography-illustrations.html
• Reasons for rejection - https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
• Similar content versus spam - https://helpx.adobe.com/stock/contributor/help/similar-vs-spamming.html

Best of luck with your future submissions.