All those characters except for the last one can be done using the G2 worflow. There's a bit of a trick but it should work perfectly fine. Ive doen it with vegetable bodies.
Edits the g2 template, only focusing on the limbs, Hands, feet, and facial features. Don't worry about the neck,upper,or lower torso.
Make your main body as a separate graphic, feel free to make as many angles as you needs, 0,45,90,180 etc.
Once you import your character into cta. You can remove or hide the upper/neck,and lower. You just replace the upper with the big body such as the pencil, front, back, 45 etc as needed, And adjust the facial features so they fit better. Fairly easy.
That last character, hes bipedal. You can provably do it by modding the basic RL template. He seems like a basic bipedal character.
If you need very specific bipedal characters you can build them from scratch. The white paper explains how they work. I have a tool at my website that helps dramatically speed things up, though if you don't mind the extra manual work, then you realistically don't need it. I also have several custom templates available for sale. A bit more advanced the Reallusion provided default one.https://toontitan.com/item-category/source-files-templates