Pulling and pushing are fun poses for a fantasy drawing! You can use the model from the side. With a few poses I have left the assisting line (made it red for clarity). For the smart use of assisting lines, see also Level 3: Handy drawing tips part 2, chapter 2.
To pull or to push something heavy
Pull something really hard
Pulling on something that can’t be moved!
Exercise: Draw a figure trying to move something very heavy (by pulling or pushing), such as a boulder, a car or a big beast.
Can you see in this children’s drawing who is pulling and who is pushing? This drawing is funny because both figures most likely will fall on the ground this way.