I've made the image at artifacts/image.png. It's a 512 × 512 PNG showing a bubblegum-pink bear bust, facing forward, with sleepy eyes, a red bandana and a navy suit. I checked the file's size and format with ffprobe and Pillow, and looked at the render myself.

How I made it: instead of using the AI image tool, I drew it pixel by pixel with a short script, tools/make_iu0559.py. The script uses a 32 × 32 grid and only the palette colours, then scales it up 16 times with hard edges. That makes it exact: I confirmed every 16 × 16 block is a single flat colour, so there's no blur, anti-aliasing or gradient.

What's in the picture:

• Bear: pink ears with lilac insides, and heavy drooping eyelids over a sliver of eye and pupil.
• Face: a bone-coloured muzzle with a black nose and lilac cheeks.
• Bandana: red (brick) with bone dots, knotted on the right side, with the ears poking out above it.
• Suit: navy with cobalt lapels, gold buttons, a bone shirt and a red tie. The shoulders run to the bottom edge.
• Outline: one-cell black outline around every shape.
• Background: solid #0c1610 with five tiny green specks, and no text, frame or border.

Colours: the image uses 11 colours. The background is #0c1610 and the outline is black (#000000), which isn't in the listed palette; I used it because the brief asks for black outlines. The other nine come from the palette: bubblegum, navy, brick, bone, cobalt, lilac, moss, gold and phosphor.

Unmet requirements: none that I know of. I couldn't check whether it fits the look of the 787-piece set, because I had no other pieces to compare against.

Where things are:

• Image: artifacts/image.png, left untracked for upload. A gitignore rule already excludes the artifacts/ folder.
• Committed files: because of that rule, the README went to docs/IU_0559.md and the record of size, format, colours and unmet requirements to docs/IU_0559.result.json. They're committed together with the script.

To redraw it, run python3 tools/make_iu0559.py, which needs Pillow.