Blocking (first pass)
I've transferred my thumbnails into 3d now, and as you will see it has already changed quite a bit from the initial sketches. I found that some of the poses needed pushing for clearer silhouettes and also you start finding nice contrasting lines of action in the body and head when you are flipping between the poses. I like to pose out my shot with the keyframes next to each other before I time them out along the audio so you can do the 3d equivalent of flipping your drawings.
I have changed one of the camera choices from the animatic too beacuse I needed to frame the characters a bit differently. Some of the acting/pose choices have evolved here too. I am constantly acting it out in my head and getting up and doing little gestures to see what might work better for the character. Some people would shoot reference before starting to block out the shot but I like to get quite well into the second pass blocking before I shoot any reference on something like this. Really I will only use that to get ideas for where I can refine and add extra realism which comes much later. It's important not to get bogged down in details at this stage. For now I'm happy with the first pass and where it is leading... you might want to get some feedback at this stage or show it to your director to make sure you are getting what you want from the keyposes. Even though I have blocked it very simply it is important to have some idea of where you are going to elaborate on actions in the next phase.
Next installment: Blocking (plus)