What I'm seeing on this picture?
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What do I see in this picture? [Good variant: What is seen in this picture?]
What do I see in this picture?
A man is lying on a chaise longue , his face covered with a handkerchief. He's sleeping  after lunch. Two birds are flying near the man, and one of them wants to grab his a handkerchief.
 It is often called a "chaise lounge" in the US.
 "sleeping" is correct. However, when someone intends to sleep for a relatively short time, we usually call that a "nap". So you could say, "He's napping after lunch", or: "He's taking a nap after lunch."
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