Emergency Eye Wash Station Sign
Your review: Colors are good.
The top black circle with the white space in the middle looks like you are thinking about the sign. I think the picture of an Eye would be better placed there to indicate what one would be looking for in an Emergency.
Pros: Size looks good, almost the size of a sheet of paper. It would be visible from a distance; unless someone was impaired visually.
Cons: The black circle on top reminds me of a cartoon thinking caption.