The phrase "a tiny picture of" is correct and usable in written English.
It can be used when describing a small image or representation of something, often in a figurative or literal sense.
Example: "She showed me a tiny picture of her cat that she keeps on her phone."
Alternatives: "a small image of" or "a miniature depiction of".
Her fingernails are exquisitely painted, each one emblazoned with a tiny picture of a palm tree rendered in multicoloured polish.
Each of them wears a tiny picture of Ayatollah Ruhollah Khomeini, the Shiite cleric who led the Iranian revolution, on his chest.
And though he politely but consistently refused to wear one for their cameras, he was always happy to sign a Fess Parker wine label, bearing its familiar trademark: a tiny picture of a coonskin cap.
Portraits of the white-bearded, black-hatted Rebbe adorn the walls of the Hurwitzes's living room, and a tiny picture of him hangs by the door leading out of the house.
The flier had a tiny picture of a large oil we had just studied at the museum: "The Problem We All Live With," depicting a black girl in a bright white dress, escorted by federal marshals.
After seeing a tiny picture of the apartment in an online listing and spotting the tea shop's awning, she went directly to the source, and Ms. Perry put her in touch with the broker.
Carmona overcame a very meticulous process to create it, changing every single word starting from the header, to the words on a label in a corner of a tiny picture, using the same color, font, format, and length.
"In most of my dealings with coaches, they have a tendency to focus on that tiny picture of tonight's game only.
Yeah, it's very artistic," I say, looking at the tiny picture of the dick.
No Woman No Cry, one of the paintings with which he won the Turner prize, is dedicated to Doreen Lawrence, mother of Stephen: each of the tears falling from the eyes of the woman in the picture contains a tiny photograph of the murdered boy.
The first thing a visitor sees on the Web is a row of tiny pictures of special items for sale: Zip drive disks, a Pokemon pinball machine and a heart-shaped diamond pendant, among other things.
