She is riding her bike. In picture A, the man eating sandwich (или что он там ест, не видно). In picture B he is not eating sandwich. He is eating ice cream.
In picture A, the dog is sitting. In picture B, the dog isn't sitting. The dog is running. In picture A, the boys are plaing football. In picture B, they are not plaing football. They are plaing tennis. In picture A, the woman is cutting flowers. In picture B, she isn't cutting flowers. She is reading a newspaper.