I've created artifacts/image.png: a 512 × 512 RGB PNG of the brick (#df523e) BOT with big eyes, no headgear, and a UI tee. I checked the file with a script and ffprobe, and looked at it once myself. There are no known unmet requirements.

How it was made: I didn't use the image model the brief points to. I drew the character pixel by pixel on a 32 × 32 grid in tools/make_image.py and scaled each pixel up 16×. That way the edges stay hard and every colour comes from the palette exactly. The script uses only standard Python and needs no network.

What it shows:

• Head: a brick bot facing forward and centred, with steel ear bolts, a steel mouth grille and a steel neck.
• Eyes: two big bone-white eyes with black pupils and one highlight each, plus pink cheek marks.
• Headgear: none, so no antenna or hat.
• Tee: cobalt with a navy collar and a tiny bone "UI" logo, the only text in the image. The shoulders reach the bottom edge and brick arms show below the sleeves.
• Style: a thick black outline around every shape. The background is solid #0c1610 with seven single-pixel moss-green specks.

Checks:

• The PNG header is valid and ffprobe reports png / rgb24 at 512 × 512.
• Every 16 × 16 block is one solid colour, so there's no anti-aliasing, blur or gradient.
• It uses 11 colours: black, the background, and nine from the allowed palette.

Two caveats:

• The outlines are pure black (#000000), which isn't in the palette list. I used it because the brief asks for black outlines.
• I couldn't check that it fits with the rest of the 787-piece set, because I had no other pieces to compare against.

I committed the script and README.md, which records the size, format and these caveats. The image itself is left uncommitted, as required; it's also covered by an existing ignore rule (.git/info/exclude lists artifacts/).