Please pardon my lack of posting in these past few weeks. Work temporarily took over! Let's get back to these step by steps shall we?
Below, I depict an osteoclast moving across the bone matrix and resorbing bone. Osteoclasts release digestive enzymes that break down the bone underneath.
Next, I use big brushes to start indicating form. I used the emboss feature and a textured brush to create the subtle, raised appearance in the surrounding matrix.
Below I began adding highlighted regions. I also used a textured brush to create the look of chewed up/dissolved bone.
If you compare the image below to the one above it, you'll notice that the one below is much warmer. When turning my layers on and off to create these step-by-steps, I must have mistakenly turned off the adjustment layer that colorized the sketch!
Below, I have sharpened the highlights and made them just a little more pronounced. I also added detail to make the osteoclast fringes look more embedded in the matrix.
Below is the final illustration, with labels, as it appears in the poster. I added the text and arrow in Adobe InDesign.
That's it for this week! Thanks for looking!