I've created artifacts/image.png: a 512 × 512 PNG (8-bit RGB) of the bone-coloured frog with dot eyes, a beanie and a hoodie, as a front-facing bust.

What's in the picture: a wide bone (#f2efe6) frog head with two eye bulges on top. Each bulge has a plain 2×2 black dot eye. The face has a wide smile, steel nostrils and bubblegum cheeks. A tangerine beanie with a ribbed brick/tangerine cuff and a gold pom-pom sits between the eye bulges. Below is a cobalt hoodie with a navy hood around the jaw, bone drawstrings with steel tips, and a pocket seam. The shoulders run off the bottom edge. The background is solid #0c1610 with six single-pixel moss specks.

How it was made: I placed every shape by hand on a 32×32 grid in a Python script and scaled it up 16× with nearest neighbour. No AI image model was used. The script needs only the Python standard library, so it runs offline: python3 tools/make_iu0176.py.

Checks I ran on the PNG bytes (all passed):

• The file is a valid 512 × 512 PNG.
• Every 16×16 block is one solid colour, so there's no anti-aliasing, gradient or blur.
• Every colour comes from the allowed palette, plus the background and black for outlines.
• The bottom row is entirely hoodie, so the shoulders reach the bottom edge.
• There's no text, logo, frame or border.

I also looked at it after each of three rounds of changes. The first version didn't read as a frog, so I added the eye bulges and moved the dots until they stopped merging with the beanie outline.

Requirements not met or not checked (also recorded in README.md):

• Outline colour: the outline is pure black (#000000). The brief asks for black outlines, but black isn't in the listed palette, so I used it only for outlines and the eye and mouth details.
• Matching the 787-piece set: I couldn't check this because none of the other pieces were available. The style follows the written brief only.
• Visual approval: only I looked at it; nobody else has reviewed it.

I committed the generator and the README. The image is untracked as required: .git/info/exclude already ignores the artifacts/ folder, so I didn't add it to Git.