Hey,
I realised the other day that I haven't drawn Dredd for years so figured I'd have a go.
I've been interested recently in other people's workflow and stuff so I thought I'd share my methods for this piece. All this in done digitally using Photoshop and a Wacom Intuos A5 Tablet.
Using a reference image to get the pose I want, I sketch out the pencils on a transparent layer:

Once I'm happy with that it's on to the inking. New layer on top of the pencils. It's usually about here that I start spotting mistakes or problems and try to fix the pencils as I go at the same time as inking:

Then it's another new layer between the pencils and inks to lay on blocks of flat colour:

Another new layer, this one cloned from the flat colour (just to leave it alone for later). On this layer I choose a darker or lighter shade of the chosen colour to block in high/lowlights.

Now I clone the shaded layer and using the original block colour layer, magic wand and free lasso to select the area(s) I want to shade. It's then a fill gradient from foreground colour to transparent, set on multiply at 50-70% transparency across the area, bit by bit. Once finished I can hide all layers apart from the blended colours and inks:

And that's it.
What do you think?