pinskish-grey,jelly like ball
A chimp's brain is a bit smaller than a human.
Your brain creates a mental image of what you look like based on sensory information and memories. This image may not always match your actual appearance, as it can be influenced by emotions and past experiences.
In reality, the human heart does not look like the traditional heart depicted on Valentines Day cards. The human heart has several cavities; both ventricles and atrium's. It also contains valves (pulmonary, aortic, mitral, tricuspid), which move the blood throughout (in and out of) the heart. The human heart is about the size of a human fist and, because the heart is a muscle with lots of blood supplied to it, it appears red like meat. Hope this helps!
The octopuses brain,it looks like the octopuses body
They look like ovals.
The same
looks like a koala with a rifle
No. Humans evolved from a common ancestor we have with today's "great" apes (chimpanzees, orangutans, gorillas). This is proven specifically for human evolution by ERVs and the fused chromosome #2. Brain coral is just an example of Pareidolia... the phenomena of the human mind to see patterns in things that aren't really anything (like religious images in toast, faces in mountain sides, etc).
HE LOOKED LIKE A HUMAN WHAT ELSE WAS HE SOPOSE TO LOOK LIKE.
Because the human brain will try to make sense out of caos. Your mind will make a shape out of no shape to make sense out of nothing.
A human
it would look the same as all the rest