For me, it would be this one:
rule34.xxx/index.php?page=post&s=view&id=8623909

She don't look like me, but she's criminally cute.

I'm pretty sure there was a thread about this at some point...

i.postimg.cc/1Xyhrcqk/backlit1.jpg

This one-
2.bp.blogspot.com/__b9BiA...1600/12.cap5_2+Lothar.jpg

This one.
Easily.
cdn.discordapp.com/attach...fe5f27de563b1e187eb6&

This one
rule34.xxx/index.php?page=post&s=view&id=8930715

A clipped version of this image:
i.dailymail.co.uk/1s/2020...lin-a-7_1581538972394.jpg

...with a shrunken, naked lady standing in front of him (so it looks like he's examining her). I had such an avatar once.

This one
rule34.xxx/index.php?page=post&s=view&id=8947561

This

tfwiki.net/mediawiki/imag...bra_Decepticon_symbol.png

This

rule34.xxx/index.php?page=post&s=view&id=6707249

Or just about any Tasque Manager picture

...I am not normal about her

rule34.xxx/index.php?page=post&s=view&id=5043896

The top right panel of this, probably. :> Mooooo.....

Probably something like this. Just a big dumb hunk of himbo fuckmeat with a massive throbbing cock made for filling holes.
rule34.xxx/index.php?page=post&s=view&id=8091899

Big weed P tree

Dam that would be awesome I'd get my Ass Out so hard

Hmmm, this probably.
rule34.xxx/index.php?page=post&s=view&id=2906654

Definitely something warhammer related, probably this

rule34.xxx/index.php?page=post&s=view&id=9498386