Quality issue

[minna_7224]

Hi, im new to this and got many photos rejected. It says quality problem. What is wrong with these photos? Can someone help me to understand? 

[daniellei4510]

I'm not that familiar with the other building, but I believe only the tower should be leaning. And the shadows need to be removed.

[oleschwander]

At the Pisa Tower there are recognizible people - is it submitted as commercial? The vineyard - maybe the moderator sees it as private property. The night image is out of focus. Ponte Vecchio seems ok to me - but maybe it's too close to the windows?

[Jill_C]

IMG_8603.jpeg - it's leaning

IMG_8770.jpeg - blurry

IMG_3768.jpeg - lens spot in the sky

IMG_6802.jpeg - the main building should not be leaning

These appear to be mobile phone images, which suffer from lack of details due to a small sensor. Also, you should be turning the phone sideways from time to time to capture scenes in landscape mode which is often more appropriate than portrait mode.