Nothing beats mixing life observation with a curated stack of references when I'm trying to get proportions right for a girl's sketch. I start with the basics: head-count proportions (most adult figures sit around 7–8 heads tall; many stylized girls do 6–7.5 depending on the look). I use 'Figure Drawing for All It's Worth' and 'Figure Drawing: Design and Invention' to remind myself how the ribcage, pelvis, and limb lengths relate. Those books helped me stop eyeballing and start measuring landmarks—top of the head to chin, chin to nipples, nipples to navel, navel to crotch—and it suddenly becomes less mysterious.
I also lean on photographic and 3D references—sites like Line of Action, Quickposes, or photography from Unsplash for different body types and lighting. For foreshortening, I'll pose myself in a mirror or take a quick photo; our bodies are weird in perspective and a photo saves me from bad guesses. On the tech side, I like using MagicPoser or a simple mannequin app to rotate a pose and check silhouette from different angles.
Finally, life drawing and gestures are non-negotiable. Twenty-five quick gesture poses trains your eye to catch tilt, weight, and balance, which are the real secret to believable proportions. Layer on clothes studies from fashion croquis and you start understanding how fabric rides on the body. Bottom line: combine
anatomy books, photos, 3D models, and live sketches—trust me, the proportions fall into place and your drawings feel alive.