Don't be silly, the admiral looks like a potato.

Incidentally, the Pixiv comments are full of comments like:

"Well, the Admiral looks like THAT, you know? You know, THAT? It's... yellow, and shaped like a T!... Yeah!"

"If you stick a white hat on a person you draw, it's an admiral, right?"

"A 'T', right?"

"Don't tell me you never considered that this thing you call 'Admiral' was in your head the whole time? (KanColle of Darkness)"

"There are as many admirals as there are users. The admiral's face is your face! (Pretending I said a good thing and leave it hazy.)"

"Akigumo: "Wait, before that, what gender is Admiral?..." ... ?... Such a basic thing, I've been worried about...."

"No.... Surely, there was someone besides Fubuki giving commands?... Eh?... Then, who did Asashio-chan give the necktie to?... Who did Wakaba give her fillet to comfort?... Certainly... who was it?..."

"An important person. A person whose name I wouldn't forget. A person whose name I'd never want to forget. What... what... what is your name?!"

"It can't be helped, because they can't see me from the other side of the screen. (Crying)"

"Those two were just about to get an injection...."

"If you speak of that thing, within two days, you will melt and die."

"The order of the world has collapsed!"

"If you say any more, then a jet-black silhouette of Ooi will come for you.... Hey, someone's coming."

"His face... is an original work?"

"There is one each of mouth, nose, and eye!"

"Ooyodo-san, come here!"

"He exists in the worship of some of the shipgirls... (Shigure, Kongou, Asashio, etc.)"

"What on earth did Arashio need his portrait for?!"

"You cannot comprehend the Admiral's true face."

"I wonder if it isn't just fine to draw Nagato?"

"Because the Admiral's face is always in shadow, it has never been seen…((( ；ﾟДﾟ)))"

Also, there were tags added:
You should go no further
Truly scary KanColle

"An important person. A person whose name I wouldn't forget. A person whose name I'd never want to forget. What... what... what is your name?!"

Dat Your Name refference.

"Do you feel like heroes, yet?!"