Afternoon Sun at the Tea Stall: Making Light and Medium Agree
Theme: 'दुपारची चहाची टपरी' - the afternoon tea stall. Medium: watercolour with poster colour for highlights, on a half-imperial sheet. The candidate has declared sunlight from the upper right, and the vendor's face is lit on his left cheek and shadowed on his right. But the bench's cast shadow runs to the left of the bench, the kettle's brightest highlight sits on its left shoulder, and the awning's shadow falls across the vendor's shoulders in a band that stops halfway and never continues onto the counter. The sky wash has a hard, dark bloom ring; the shadow under the counter was mixed from black lightened with white and reads as a chalky, opaque grey; the pencil underdrawing shows through the thin wash in the sky and on the vendor's shirt. About 75 minutes remain.
1. Establish one light direction and list the cues that must agree. Then state exactly which elements you would change and which you would keep.
Read the worked answer
Five cues define a light direction, and all five must agree: (i) lit planes - surfaces facing the source are lightest; (ii) the terminator and core shadow on the side away from it; (iii) cast shadow direction, running away from the source; (iv) specular highlights, on the lit side; (v) occlusion darks where forms meet, independent of the sun.
Decision: keep the upper-right source. It suits an afternoon scene, throws the stall's long shadow toward the viewer's lower left as a strong diagonal, and the vendor's lit left cheek is already painted and worth saving.
Then change the outliers, not the sun.
- Bench shadow: redraw it running down-left, away from the source, and lengthen it to roughly 1.5–2 times the bench's height for that sun angle. Cast shadows are longest at low sun; a short shadow with a high sun reads as a different hour.
- Kettle: move the highlight from the left shoulder to the upper right of the body. The left side keeps only a reflected-light half-tone - a highlight there is a second sun.
- Awning shadow: continue the band across the counter and down the vendor's arm as one connected shape. Its top edge is soft (distance from the occluder) and its lower edge crisper where it meets the counter.
- Add one proof: a stool or a customer's shadow crossing another object, so the light is shown travelling through the whole space, not just falling on the hero.
2. Fix the chalky shadow grey and the bloom ring without repainting the sheet.
Read the worked answer
The grey. Black plus white produces a dead neutral with no temperature, and it sits on the paper as an opaque patch. That chalkiness is a value failure as much as a mixing one: daylight shadows are not neutral - they are the local colour shifted darker and cooler, plus reflected light.
Cure. Do not cover the patch; glaze over it. A thin wash of ultramarine with a little burnt sienna - a complementary pair - unifies whatever lies underneath and restores transparency, because the paper still shows through. Keep white for two or three specular notes at most; in watercolour, white is the paper, not the tube. Poster colour is for final opaque accents only - a lit rim, a sign, a cup - never for building shadow masses.
The bloom. A bloom forms when wetter paint is dropped into a wash that is drying unevenly. The ring cannot be removed completely, but it can be managed:
- Rewet the whole area evenly with clean water and a soft brush.
- Lift the tide-line with a damp, thirsty brush - press, do not scrub, since scrubbing damages the sizing.
- Lay one flat, even wash across the entire area, tilting the board consistently and stopping before the paper dries.
- If the ring persists, absorb it into a soft-edged cloud mass so it reads as a cloud edge, or crop it out at the finishing stage.
Never try to touch up a single spot inside a drying wash - that is what created the ring.
3. Deal with the visible pencil underdrawing and set out a finishing order for the last 75 minutes.
Read the worked answer
Why it shows. Graphite is greasy and sits on the paper's surface, repelling water, so it stays visible under a thin wash. A soft B–4B line is hopeless under watercolour; the underdrawing should have been a barely visible 2H line.
Fixes now.
- Dab the worst areas with a kneaded eraser - dab, never rub, because rubbing damages the sizing and the next wash will crawl and patch.
- Glaze one more thin wash over the sky and the shirt. Two thin washes hide more than one thick one and keep the sheet transparent.
- Where a line will still show, make it a chosen line: run a fine-brush or ink accent along the stall's uprights and the vendor's silhouette. A deliberate contour reads as style; a random one reads as sloppiness.
Finishing order for 75 minutes.
- 0–10: confirm the focal point - the vendor's hands and the steam - as the sharpest, highest-contrast area, and fix the light outliers from the previous task.
- 10–45: render the focal area and the foreground; keep the background soft and light.
- 45–60: unify cast shadows and glaze the grey under the counter.
- 60–70: clean the border, keep a consistent 1.5–2 cm margin, wipe stray paint, check tangents where the counter meets the frame, darken one foreground shape to anchor the base.
- 70–75: step back, correct nothing new, stop. Adding a fresh element in the last five minutes is the most common way a resolved sheet is destroyed.