The difference between these drawings is not all that incredibly stark, however the brown tone really seems to take the edge off and makes the figure appear more like a warm body, rather than a cool rendering. You feel it?
This is the main reason why I like keeping a variety art supplies in my studio that may not be in my current forte, yet can be something that just comes to me or that I see another artist use and want to try myself. For example, I've been to an art gallery before and became really inspired to replicate the watercolor or colored pencil techniques that I had just seen as soon as I got home. Even though I use those materials incredibly rarely these days, I'm still so grateful to have them whenever the mood to branch out strikes.
I highly recommend for other artists, especially ones who are still discovering their own style, to go to their neighborhood locally owned art store and just have fun picking out a few random drawing instruments or inks or even clay to bring home for a rainy day or as a cure for artist's block. Trust me, before too long you will be glad you did!