Tips on drawing arms: T triangulation method is wrong
Theres an old picture going around with that T method of drawing arms and placing wrist and elbows, but I think it could lead to some misunderstandings of proportions.
you can still use that method, but try to accommodate for lengths of your character's arms by referencing landmarks on the body.
Just a short little pseudo tutorial for it.
Try to think of of it radially. A sphere of movement range centerd at the joints.
Also sorry for not uploading anything in a while. I'm bad at life.