Drawing Grimm from 'RWBY' feels like figuring out a dark puzzle, and I love that about it. Start broad: watch scenes in 'RWBY' that show different Grimm in motion and pause frames to study silhouettes. Grimm are all about silhouette and negative space — big, jagged shapes, clear read on limb placement, and a sense that joints bite into the body rather than flow smoothly. Sketch lots of thumbnails to nail the silhouette before adding details.
Once you have silhouettes, break down the anatomy into simple forms: spheres for joints, cylinders for limbs, and planes for torso sections. Reference real animals — wolves for Beowolves, birds for Nevermores, insects for Arachnids — and then exaggerate. Think about where muscle would have to be to support movement even if the Grimm’s skin is chitinous or shadowy. Use contrasting textures (matte fur vs. glossy chitin) and consistent light sources to sell volume. Keep iterating: rotate your draft, draw orthographic views, and push proportions until the creature feels both monstrous and believable in motion.