The commentary title says it's "Akagi-san" but she certainly doesn't look like her.
And there's not much tag either so we can't really say it's from KanColle or not.

I'm not an expert in Kancolle, so I tagged basing on latest black-haired girls with similar looks as her from kantai_collection tag.

[deleted]

So more tags have been added to the pixiv image, indicating that this isn't a kancolle image at all. It is tagged as リング☆ドリーム (Ring Dream).