Despite its apparent simplicity, this image was technically very difficult to render (without undesired artifacts) and looking at it closely actually hurts my eyes. I'm counting it as a win.

The gently curving lines form a high-frequency pattern that can very easily introduce Moiré patterns if resampled without proper filtering, and even with proper filtering a less than optimal reduction factor will result in artifacts. If you open the full-size image you might still see such artifacts as your browser/image viewer scales the image to fit the window/screen or adjusts it to match your display scaling settings.