I drew this yesterday as well. I've always thought that Bill's Wheel was epic, so I decided to draw it. Took me 2h to draw. I will draw the one that's not coloured soon (maybe before Friday, depends if I have hw.).
Funny story, when I was drawing the big circle, I got mad and said 'I can't draw a straight circle.' I only realised what I said after a minute and my dad and mum were laughing because I said 'straight circle.'
Straight. It's funny 'cause circles aren't straight. 😂😂

If you don't know what the symbols mean, I'll tell you. Each symbol represents a particular person. Spoiler alert ahead. Read with caution.
Question Mark - Soos
Bag of Ice - Wendy
Fish - Stan
Pinetree - Dipper
Star with Eye - Gideon
Hand with Six Fingers - Ford a.k.a the author of the journals.
Llama - Pacifica
Shooting Star - Mabel
Heart - Robby
Glasses - Old Man McGucket
And in the middle is, of course, the one and only dream demon, Bill Cipher.