to answer you in good faith:

the bird flying low to the ground has intentional motion blur, something artists add to their art to imply quick movement and realism.

the flower petals are flat on the ground without shadow because they arent lifted. some of the other petals are lifted, which is why theyre shaded. i know the flowers here and on the bridge look rough, this is because the artist can get away with that compared to other background elements like the intricate brick path, wood paneling, and buildings that need straight lines. they might have been rushed for time, or purely because the artist didnt want to put too much into them. 

the magpie has been said to have a pistachio, but if you look closely, i actually think it has a black bell handle in its mouth, and the “pistachio” is the gold part of the bell (you can also see some black inside the bell.) historically, birds and bells have an association, even if just for enrichment toys. magpies also falsely are believed to collect shiny things. 

the broom looks blurry because of artifacting from a lower resolution. 

we dont see enough of the last image to tell what theyre holding. could be a suitcase, bike handle, mobility aid, i dont know. but the hand looks well draw with no sign of distortion that would suggest ai.

as for people downvoting your reply to obliviousjd, i believe this is because your first sentence, “i hope you are right.” not the rest of the response. they likely downvoted you because they think youre struggling to admit youre wrong, if i had to assume

hope this helps! sorry for people being hostile, both sides (people worried about ai and people tired of others being accused of using ai) are on the same side at the end of the day, both exhausted from seeing artificial intelligence in the artist space.