What are the common mistakes when render sketch 3D models?

Common mistakes when rendering sketch 3D models include overloading with unnecessary lines, neglecting depth cues like line weight, and mismatching sketch style with lighting. Overloading lines clutters the hand-drawn look instead of highlighting key shapes; neglecting depth makes the model feel flat. Mismatching style and lighting (e.g., realistic shadows with loose lines) breaks the cohesive sketchy aesthetic. For beginners, start with simple line sets and test subtle depth adjustments (thicker foreground lines) before adding details—this keeps the sketch intentional.