I guess that it also has to do with whether-or-not you can actually draw!
(Awright, awright, stop snickering here … I’m actually serious. I… can’t … draw.)
Therefore, the fastest and most-effective way that I have, to get a point or idea across, is to “kit-bash” something using Blender. It ordinarily consists of (“to scale(!)” …) geometric shapes. A tiny animation, or just a camera-flyby.
You might say that I’m flipping the process of “human visualization” end-for-end. Instead of presenting you with a very detailed sketch (which, as I said, I am quite-incapable of doing, although my nephew isn’t …), and asking you to visualize what it would look like if it were actually moving … I present you with something “that i actually, ‘moving’,” and ask you to imagine that “Mister Sphere-Head” is actually a Bunny.
But, I would also cautiously suggest that there is a certain method to my madness:
By doing things this way, I push attention to “the shots.” And, to the many (cinematographic …) alternatives to each “shot.” Although I do this, in part, purely out of very-real necessity … “it’s not just that,” at least for me.
Find what works for you, for your abilities (or lack thereof), and for your client(s).