This doesn't look incredibly like or unlike a horse's head to me, although I can see the similarity. It's not the only thing compared to a horse in the cosmos, such as this:
Then there is of course this:
Then there are these living things:
Both quite similar and somewhat reminiscent of the Mandelbrot Set.
Finally, there's this:
It seems to me therefore that if it does turn out that the oceans of the Earth-like, or even not particularly Earth-like but still life-bearing, planets and other bodies in the Universe are teeming with life, many of the lives they're going to be teeming with are probably going to be sea horses, and this is likely to be true to a much greater extent than that there are going to be human-like species on other planets, or for that matter even kangaroo- or marmot-like ones.
The Universe, I'd be prepared to bet, is full of sea horses, and this is a very, very good thing. There will be sea horses everywhere.