I'll post it to my profile wall.
Somehow I can't see it (on your wall)? Can you please also post it to this thread?
Judging from memory, I imagine the "Oh!" could be solved by rearranging the sizes / atoms a bit: by putting a small dot at the bottom and/or by rotating the atom-formation a little, or making it a bit more into a rhombus than a perfect square. And also: That face-in-the-stars didn't occur to me when I first saw it. From memory, I still like your design from yesterday / couple hours ago best!
The atoms could also represent any of a number of square/diamond-shaped star constellations which move across the northern/southern hemisphere night sky throughout the year, symbolising that there is no special meaning to the stars, symbolising the stance against superstitions, like today's zodiac signs, ancient Babylonian / Hellenistic astrology, all the religionist's stars, et cetera.
And (from memory) the "Oh!" could just as well be an "Ah!", as in an epiphany, when making an important discovery about the nature of things ![]()
I like how easy it is to interpret many different meanings into that symbol, allowing it to represent so many key aspects at once.