Day 14 – Masking for Highlights

Day 14 – Masking for Highlights

Let the Paper Shine

Technique level: Advanced
Duration: ~40-50 minutes (including drying time)

Paper:
Kreatima aquarelle 25% cotton (maybe).

Colors, all A.Gallo:
– Indigo (NB1)
– Fig green
– Sap green
– Olive green
– Rose Madder (NR9)

Objective:
Learn to save crisp highlights by applying masking fluid before painting. You’ll be capturing tiny gleams – like sparkles on an insect’s eye or morning dew caught on a curled leaf. The goal is control, restraint, and a touch of shimmer without overworking.

Materials:

  • Watercolor paper (hot press or smooth cold press for clean edges)
  • Masking fluid
  • Old or dedicated brush for masking OR a ruling pen, toothpick, or silicone tool
  • Watercolor brushes (round size 4-6 + detail)
  • Pigments: your choice of earthy or natural tones + something with sparkle potential (e.g., Phthalo Blue, Sap Green, Burnt Sienna, Quin Gold)
  • Optional: iridescent watercolor or a tiny bit of white gouache for finishing touches

Steps:

  1. Light Sketch:
    Draw the basic shape of your subject – a beetle head or a leaf edge with dew. Keep it simple but accurate. Mark where the highlights will be: the dew glints, reflected light in an eye dome, or sharp edge light.
  2. Apply Masking Fluid:
    • Use a fine tool (ruling pen, toothpick, or an old brush coated in soap first) to dot or line masking fluid exactly where the brightest highlights will be.
    • Less is more – mask only what truly sparkles.
    • Let it dry completely. (Wait. No shortcuts.)
  3. Paint Your Subject:
    • Paint normally, using transparent layers to build color and form. Let colors mingle a bit, especially on the surface of the leaf or bug.
    • Use warm/cool shifts and gentle glazes to suggest curvature, surface gloss, and transparency.
  4. Lift the Masking:
    • When everything is bone dry, gently rub off the masking fluid.
    • Voilà: pure paper white where your sparkles go.
  5. Optional Touch-Ups:
    • If needed, soften a masked edge with a damp brush or glaze over part of it.
    • You can add a dot of iridescent color or white gouache to emphasize a sparkle, but only if it needs it. Keep restraint.

Focus:

  • Think ahead: where is the light strongest? That’s what masking is for.
  • Don’t over-mask – strategic highlights are more convincing than a polka-dot bug.
  • Practice applying masking fluid smoothly – you want sharp edges, not blobs.

Bonus Prompt:
Try painting a second version without masking – compare the spontaneity of lifting paint or working around whites. Which works better for tiny natural gleams?

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