Images made by Chat-Gpt clearly seems made using AI.. Not realistic at all?

My prompts were too basic to mention, hardly 2 to 3 lines
With keywords realistic, surreal, etc. keywords to make those photos look real life. But failed.

I have noticed, there is heavy use of dark red/brown color in all photos background or most used color at back. (or maybe my observation)

I can find similar images on internet, were people are using ChatGPT to generate those photos/image

Trying prompts from those topics, makes my images/photos different compared to what is posted by user, not sure why though ?
Also, the most used colors like red/cherry/brown is common in all photos, generated at my end.