The image is at artifacts/image.png: a 512 × 512 RGB PNG (about 3.8 KB). My checks confirm the size, colours and pixel grid, and I reviewed the image by eye.

What it shows: a swamp-green (#7cc84a) ghost seen from the front as a centred bust. It has a rounded dome head and a wavy sheet hem that drapes over its collar. It has black dot eyes, a small "o" mouth and pink blush. It wears a red knit beanie with an orange cuff and a white pom-pom, and a navy suit with a white shirt and red tie. The shoulders run off the bottom edge. Every shape has a thick black outline, and the background is solid #0c1610 with six tiny green specks. There is no text, frame or border.

How I made it: a short Python script, tools/make_iu_0188.py, draws the character on a 32 × 32 grid and enlarges it 16× with hard square edges. It uses only standard Python, so it needs no network or extra packages.

Checks (run from a scratch script):

• The file is a valid PNG at 512 × 512.
• Every colour is from the allowed palette, plus black for outlines and the background colour.
• Every 16 × 16 block is one solid colour, so there is no anti-aliasing, gradient or blur.
• The suit fills 28 of the 32 cells in the bottom row, so the shoulders reach the bottom edge.

Limitations (also listed in tools/README.md):

• I drew it in code instead of using the image-generation tool, because that was the only way to guarantee the exact palette and hard pixel edges. I couldn't compare it with any other pieces of the 787-piece collection, so it may not match the set's look.
• The outlines are pure black (#000000), which isn't in the listed palette. I treated black as allowed because the style rules ask for black outlines.
• The pom-pom's outline is one cell below the top edge, so the character sits close to the top of the frame.

The image is left untracked, as required; this repository's local git settings already exclude artifacts/. The script and README in tools/ are new but not committed, because the task didn't ask me to commit.