Follow the process. Whatcha' got here is yer exposition in two voices.
Bottom line=double bass drums/pedal. Bottom stave = right hand: floor tom, low tom, snare drum (snares off). Upper
stave = left hand: low tom, mid tom, hi tom.
If you click on the picture it will open in a larger window and will be easier to read. Note the use of a form of contrary motion in measures 10, 11, and 12. Who else invites you in to watch like this, huh? Enjoy.