3D Artist and Art Director Alexander Boluzhenkov has shared a concise 40-second tutorial demonstrating a neat technique for adding complex shapes to surfaces in ZBrush in mere minutes. The approach comprises creating a mask in the shape you need, blurring it, and then tweaking it via the Mask Adjust curve to get advanced trims and transitions without spending ages sculpting them manually. You can watch the full guide attached above or by visiting Alexander's LinkedIn page.
And here are some of the artist's character concepts made using a combination of ZBrush and other 3D tools:
