Planning narrative - 2 Column Storyboard (And Peer-Assessment)

We are experimenting with a 2-Column storyboard to plan our music video. We haven't used one of these before so we were a little unsure of how to go about it at first.

We soon developed our idea and what sort of shots we wanted to use and then we traded storyboards with another group in order to get feedback from our work the feedback we got was as follows:
0:31 - 1:09 needs a little more detail as to what shot types are being used within this section
how long are these shots going to run for? 
In addition to this we were also asked what our narrative actually was and it was suggested that we put a brief outline at the top of the storyboard so that the camera-man or actors in question would know what is going on.

The two column storyboard was useful however I am unsure if I prefer to drawn storyboards, I am contemplating using both on the music video to see which one proves more useful for us.