I really love working in black and red on a white page. There is something about the very graphic image that results, and perhaps it locks in to my childhood enjoyment of 'colouring in' - and yes, I was a child who liked to colour carefully within the lines.
First of all, some quick sketches - 'warm-ups':
Those sketches, and the following one are completed in my 'Red and Black' sketchbook - I tend to have separate sketchbooks for different kinds of work. I think I'm either organised or obsessive!
And then I challenged myself to a black and red sketch on my
i-phone, and was quite pleased with the result:
If you've not tried this, then do have a go.