clarification for technical issues on these images

[sandamali5CDF]

hello, I uploaded some photos.but not accepted with teqniquel issues.so please tell me wht are thr teqniquel issues of my photos

[Marianne-Deiters]

Image 1 is underexposed. The spot in the sky bothers.
Image 2 seems to be sharpened too much.
Image 3 the lettering must be removed, the flower is not optimally in focus.

[sandamali5CDF]

thank you for your hellp