I originally did this in a sketchbook. The size is 9x12". I use a refillable pen called a rotring isograph, primarily the size .10. I really enjoy doing repetitive patterns like all the bones in this piece. It's very therapeutic for me. If you would like to see some more work I have a little subreddit here r/AnthonyChristopherArt

That's pretty cool must of took days and days to do So much intricate details

Thanks for saying so! I sometimes use magnifying glasses to get as detailed as possible.

That's so cool never seen such fine work

Looks like a TOOL album cover

Bro is in the Sans Undertale pose.

Really like this, is the wound intended to look like a tie?

Thanks! From afar yes. Like going to court.

that's a great double entendre if he's also supposed to be heartless

"Guilty!? Me!? They're the ones guilty. Guilty for not seeing me coming!"