Besides the strange background, you have washed out colours and artifacts in your image. Examine the image at 100% and the important parts need to be in focus (the plant). Examine at 200% and look for artefacts.
My screenshot is a 100% view, you see the washed out details on the leaves. Some elements cannot be correctly examined because of the compression artefacts that I suppose are not present on the submitted file.
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Thanks for helping...