I made the image at artifacts/image.png: a green ("swamp") bunny with big eyes, no headgear and a robe, as 32×32 pixel art enlarged to 512×512. I looked at the result and it reads as intended. The image file is left untracked as asked, and I haven't committed anything.

How I made it: Pillow (the usual Python image library) isn't installed, so I drew the bunny with a small Python script, tools/make_iu_0411.py, which uses only the standard library. It lays out the 32×32 grid by hand, mirrors it so the bunny is symmetrical, and enlarges each pixel to a 16×16 block with hard edges. I didn't use the image-generation tools; drawing in code keeps the grid, colours and edges exact.

What's in the image:

• The bunny faces forward and is centred, with its shoulders reaching the bottom edge.
• It has pink inner ears, cheeks and nose, and big navy-and-white eyes with black pupils.
• The robe is lilac with a white V-collar, a gold clasp and navy fold lines.
• Every shape has a thick black outline. The background is solid #0c1610 with a few small green specks, and there is no text, frame or border.

Checks run:

• Not run: imd-media ffprobe failed because ffprobe isn't installed here.
• Header: read with Python instead. The file is a valid PNG, 512×512, 8-bit RGB, 3658 bytes.
• Colours: decoding every pixel finds exactly 9 colours: the 8 palette colours used plus black for the outline. So there is no anti-aliasing, gradient or blur.

Unmet or unchecked requirements (also listed in README.md):

• The outline is pure black #000000, which isn't in the listed palette. I used it because the brief asks for a black outline.
• I couldn't check that it matches the rest of the 787-piece set, because no other pieces were provided.