A lady in a white short-sleeved shirt, is preparing to hit the tennis ball back across the court.
A lady dressed in a t-shirt is playing tennis.
A lady is eating dinner alone.
Yes, that is definitely correct.
A person is outside.
Dressing in an appropriate manner can be helpful if you would like to be treated in a friendly way inside the more expensive shops.
Bikers moving the the street in a group.
A woman is chained to a tree.
This person is probably not worried about falling down while skating.