A man pointing into the ear wearing a striped shirt in a small boat filled with many people.
A man is pointing into the ear and wearing a striped shirt.
"small boat" described where the man in the striped shirt is standing.
"A man is pointing" provides present tense action to "A man pointing".
Pointing is a paraphrase of is pointing, and wearing a striped shirt in a small boat is a type of wearing a striped shirt.