>>35436797butt
>>35467088You get more accurate at blocking shapes the more you do it if you want to do a more loose style, or you can fine tune your workflow of blocking with selection tools like magic wand and selection pen if you're looking for a more precise blocking. For shading you can train to block bigger shadow shapes to make it faster and it's the "right" way to paint anyway if you train by classical painting technique. Then go to render little details after that which is inevitably going to be the timesink, but you can learn to find focal points to focus your tiny rendering efforts on those parts. It's just mileage in the end just like with sketching and lineart.
