Artist's Commentary:

もっと早く描いて上げるべきだったと後悔している。というわけでネウロイの方を。参考にして貰えたら幸いです。　こちらも併せてご確認下さい→illust/16007397

Translation provided by EX slowpoke:

"I regret that I had to rush the art here. Anyway, here are the Neuroi. Feel free to use this as reference. Please, see this one, too:
→illust/16007397"

Part Four of Four

Part One: post #888101
Part Two: post #888102
Part Three: post #888103