FINALLY This took me too long to do because 1) I decided to be really picky about it and 2) I drew a bunch of other stuff at the same time that my brain deemed more important.
It's not the nicest one, but it's certainly better than any other reference I've done, especially the last one of him that I did.
I have a version that has the last section in it
and if you have problems reading the top stuff, i got the real full size here: http://orig08.deviantart.net/5e90/f/2017/016/e/9/a_big_reference_for_a_big_worm_by_t4pew0rm-davnk9l.png