I did the sketch for "Boy sitting alone" on vacation. At first, I wanted a normal-looking boy instead of a monster. To make the illustration look like it did in my head, I had to try out new shading and coloring techniques in Photoshop. I've often seen illustrations in a similar style and I've always wondered how to do it until I tried it on my own.
I have created portraits in a similar style before (see here). There I have dealt for the first time with simple gradients and new shading possibilities. This time I took more time and also worked out the eyes better.