Well 'mastering' may be too strong a word but I have managed to finish my first sketch done with my left-hand. Having injured my right I'm endeavoring to continue my quest to sketch daily, now with my left hand, although admittedly at the moment it's more like once or twice a week! Not deterred by this, today I finished the left-handed sketch of one of the gargoyles from Merton College in Oxford. I've been using my favoured mechanical pencil and my Strathmore medium surface sketchpad.
Taking another look at the sketch I realised that the tonal values were not broad enough, I needed to have more tonal values and a greater distinction between the lights and darks. To do this I went back over some of the areas I'd already shaded and darkened some and then used the small eraser on the end of the mechanical pencil to gently lift off some of the lead in the lighter areas. Usually I would use a putty or kneadable eraser to do this but the mechanical pencil is all I have to hand and to be honest, it does an okay job given that my left-handed sketching is no Rembrandt!.
So hopefully you can see the difference in the tonal values between the two images. I think it makes the form look more solid. I'm still having to turn the sketchpad regularly to be able to shade at a more comfortable angle but I'm noticing that I have a little more control over the fluidity of my wrist movements so I'm not turning the pad as much as yesterday. Another noticeable difference in the sketch itself to those done with my right hand is the pencil marks are more visible; by that I mean the blending is rougher and so you can see the individual marks that make up the shading more easily.
I'm leaving the sketch as it is at this stage, I think to sketch in the hood would lose the form of the face as the tonal values are way too similar. It could be that my brain and my left hand are a lazy and easily bored combination and I want to go onto a new subject! On the whole I'm very happy with the results and well on my way to mastery!