I do not consider myself an artist but I can visualize and illustrate. My main talent lies with conceptualizing something in my head and then putting the idea on paper in literally a few seconds to a few minutes.
Here are some examples of random emotional expressive conceptualizing.
The drawings are very sketchy, expressive and catches the moment or the emotional spark.
I love capturing these moments.
A rough sketch like this one of marvel Comics' Silver Surfer, could then be developed into a full artwork, either as a painting or digital rendering or just a full pencil sketch. One also does rough sketches like these for jewellery design concepts.
A concept sketch, made in about 7 minutes for a ring. Drawing quickly is a requisite for dealing with clients who can't wait for hours while you draw.