Meine Bilder wurde wegen Qualitätsproblemen abgelehnt. Kann jemand etwas zu den Bildern sagen? Bin absolut neu hier. Vielen Dank :)

Photos need sharpening.
Photo 1 also needs the shadows opened and the branch in the lower left should be removed.
Photo 2 also needs the shadows around the eye opened.
Photo 3 the DOF is too shallow. 

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Thank you very much :)

I'm concerned about the underexposure and the loss of detail in the shadows (crushed blacks).

The bird perched on the tree branch is slightly out of focus or blurred.

The depth of field for the butterfly is too shallow.
It is preferable to have a wider area in focus.