Create a clean educational FACS Action Unit expression grid featuring a realistic adult female character. Use minimal studio lighting, neutral white background, high readability, professional facial anatomy reference sheet aesthetic, realistic skin texture, consistent identity across all panels. COLOR SYSTEM: Use soft pastel color coding for categories while keeping the overall sheet minimal and elegant. Forehead & Brow AUs: soft pastel blue Eye & Eyelid AUs: soft pastel lavender Nose & Cheek AUs: soft pastel peach Lip & Mouth AUs: soft pastel pink Head Movement AUs: soft pastel mint Eye Direction AUs: soft pastel cyan Special / Misc AUs: soft pastel beige Apply the color subtly as: - panel background tint - thin borders - small label accents Keep colors soft, muted and professional. Include these Action Units: GROUPS: FOREHEAD & BROW AU1 Inner Brow Raiser AU2 Outer Brow Raiser AU4 Brow Lowerer AU71 Brow Furrow AU72 Brow Bulge EYE & EYELID AU5 Upper Lid Raiser AU7 Lid Tightener AU41 Lid Droop AU42 Slit Eyes AU43 Eyes Closed AU44 Squint AU45 Blink AU46 Wink NOSE & CHEEK AU6 Cheek Raiser AU9 Nose Wrinkler AU11 Nasolabial Deepener AU82 Nostril Dilator AU83 Nostril Compressor LIP & MOUTH AU10 Upper Lip Raiser AU12 Lip Corner Puller AU13 Sharp Lip Puller AU14 Dimpler AU15 Lip Corner Depressor AU16 Lower Lip Depressor AU17 Chin Raiser AU18 Lip Pucker AU20 Lip Stretcher AU22 Lip Funneler AU23 Lip Tightener AU24 Lip Pressor AU25 Lips Part AU26 Jaw Drop AU27 Mouth Stretch AU28 Lip Suck AU84 Tongue Up AU85 Tongue Out HEAD MOVEMENT AU51 Head Turn Left AU52 Head Turn Right AU53 Head Up AU54 Head Down AU55 Head Tilt Left AU56 Head Tilt Right AU57 Head Forward AU58 Head Back EYE DIRECTION AU61 Eyes Turn Left AU62 Eyes Turn Right AU63 Eyes Up AU64 Eyes Down SPECIAL / MISC AU81 Chewing