>>1672245Like we were talking about before; simplest way is just to create layers of colour over the image and set the blending option of said layers to multiply. But, again, this doesn't always work very well and can be very limited depending on situations.
There are other blending options and filter you can play with, or you can try basically redrawing and colouring and tracing the original. To start with, though, I'd just use multiplying layers and play with other stuff as you go to see what happens.