With “It” Referring to... Vaguely Similar Facial Expressions?

Found in a folder on my work computer:

I’ll be honest, I cannot remember where I was going with this one. Doubtless it was intended to be the third in a series that began with this and then which continued with this, but I think this one got away from me.

This must have been how Samuel Taylor Coleridge felt when that person from Porlock caused him to lose his momentum on that poem about his poem about his fancy princess castle or whatever. I wish sometimes I wasn’t so like Coleridge.

EDIT: It has been brought to my attention that these subjects share a basic body shape. I cannot argue with this.