There is something about his appearance which is ghastly, it looks like he is standing into a different dimension. I can see song here I was having a look to your gallery and casually spotted some interesting pictures. What is the dog series about?
Dogs of Zone are related to the Zone concept which you can read about in the "Roadside Picnic" book, the equivalent in real world could be exclusion zone around Chernobyl nuclear plant. I'm using this theme quite loosely, it's more about the feel and expression rather then literal depiction.
a really like this drawing and your gallery in general...u are very good with digital media takes me a second to understand that there is no ink on this ...and this particular one is like most of my drawings ...I might use this a reference in my next one! I let you Know!