The amount of time it can take to draw these characters can really vary. The cat, for instance, was a quick 30 minute exercise that started out more proportionally realistic, but was stretched and simplified over a couple of sketches. The lines were kept intentionally loose and sketchy because of the speed of the drawing, and the same can be said of the colour application.
The lumberjack was a bastard. I originally intended to only spend about an hour on him, but I just couldn’t seem to get the look right, so I ended up doing multiple versions (different poses, face, beard, clothing, etc…) which took about four hours in the end. I still don’t really like the design which makes it worse, but I realised I wasn’t loose enough with the initial sketches and I think that stumped me.
The old hag was a fun character to work on. I took inspiration from an photo of a young girl backpacking. I sketched her out and then just exaggerated the shapes, added an octopus, a weird cat-like creature, and aged her up about a thousand years, and voila!