Assuming that you're going to hand off this script to artists and won't be drawing this yourself, I wouldn't stress so much about how exactly you're describing things. As a comic artist, the most important things for me to know when adapting a script are the dialogue and any visual details that are important to the plot and/or setting. If you want a fight scene to be choreographed a certain way, specific background details to stand out, the facial expressions to be exactly as you're imagining, or a certain mood/atmosphere to a scene, then write those details down. Otherwise, trust your artist/s to handle things like pacing, posing, backgrounds, etc somewhat on their own. Working collaboratively with your artist/s and communicating along the way should work out any concerns you have!
So basically: as an artist, I wouldn't want to draw a script that has only dialogue. But, I moreso wouldn't want to draw a script with too many unnecessary details. Keep it simple! Also, Capeshit is a great name.