How to draw or how to copy?
If you're using pictures as reference as you said, it means to look at others drawings and adapt it into your own style; or draw that figure in other poses.
One thing that annoyed me was the part where you had suddenly added shadows in without saying why you have put the shadows in where you did, do you know why the shadows are where they are or was that just how they looked on the picture you copied.(Also i have no idea what you mean by convert to MC)
Copying pictures is easy enough for most people but creating original drawing is what requires a tutorial.
Sorry but this dosen't strike me as a tutorial; more like an idea you came up with to try and show off a few drawings.
Nice drawings though:)