Triplets

I'm trying to achieve a few things with this portrait and shying away from others.
1. It's a technical exercise in portraiture. How close can I come to getting a semblance to the model? In this case it's me and i think I'm pretty close in some parts and off on others.
The other part about painting a self portrait specifically is that I find that I could be a bit looser with it. I'm not so precious about get the semblance down and have room to experiment... (yeah, I just contradicted myself). I find when I paint friends, I'm a lot more uptight about getting them to look like them and get a bit upset when it doesn't turn out.
2. The other objective with the triple heads was to bring it closer to my sketchbook layouts. I like the look of my SB spreads where one form flows into another and it's just a mess. I like that look and I'm trying to bring that "messiness" into my paintings.
3. As for the black and white rendering. I suck at colour. I look at other portrait artists and they have a knack for skin colour but also harmonizing the entire painting. I find my colour works are a bit too plastic/artificial. But I guess one way to overcome that is to keep on painting in colour.
4. Lastly, this is my diary. I don't a have written one so these images will remind me of the circumstances surrounding the painting of it.