"When should I switch from Loomis to Reilly?"
Reader question via email. Short answer: when your goal shifts from accurate proportion to expressive line. Long answer: three specific signs that Loomis is no longer giving you what you need.
The two methods do different jobs
Loomis is a geometric construction method. Sphere, planes, jaw landmark, features on the construction lines. Built for accurate proportion at any angle. The output is a believable head shape.
Reilly is a rhythmic flow method. Frank Reilly taught at the Art Students League in NYC in the 1940s. Instead of constructing from geometric primitives, you place a sequence of flowing curves — the rhythms — and the face emerges from their intersections. The output is a head with character, motion, and stylization.
Most students learn Loomis first because it's the more teachable system. Most professional illustrators eventually adopt elements of Reilly because Loomis-only heads look stiff.
Three signs you've outgrown Loomis
1. Your heads look anatomically correct but lifeless. All proportions check out. The eye-level, side-plane angle, jaw landmark are all where they should be. But the drawing reads as a mannequin. This is the most common signal — and it's exactly what Reilly's rhythms address. The rhythmic lines impart motion and gesture that geometric construction can't.
2. You can construct a Loomis head from memory in under 90 seconds. If you've got the geometric construction in muscle memory, you've extracted everything Loomis has to teach you. The next 100 hours of practice will give you diminishing returns. Time to expand.
3. You're moving toward illustration or character design. Loomis is built for realism. Stylized work — comics, animation, concept art — benefits from Reilly's expressive line over Loomis's geometric precision.
Practical migration path
- Spend 2-3 weeks studying Reilly's published diagrams. The Art Students League has reproductions online; Vilppu's video lectures cover Reilly extensively.
- Don't abandon Loomis — use it as scaffolding for the first 30 seconds of each head, then overlay Reilly rhythms.
- Practice on the same reference photo with both methods and compare. The differences will be obvious within 5-6 attempts.
A common middle-ground — using both at once
Many artists who have learned both methods do not switch from Loomis to Reilly so much as use them together at different phases of the same drawing. Loomis goes down first to establish the head's orientation and proportional landmarks — the spherical construction is faster and more reliable for the initial block-in. Reilly's rhythmic curves come in later to connect the features into a unified facial flow, which is what makes the final drawing read as a living face rather than as a constructed assembly of parts. The two methods are not mutually exclusive; they handle different problems within the same drawing and most working portrait artists use them sequentially within a single session.
The same logic extends to Asaro and Bargue. The four methods are best thought of as a vocabulary of techniques rather than as competing systems where you have to pick one. Different parts of the same drawing benefit from different methods, and the integration is what separates artists with one method from artists with four.
What about Asaro and Bargue?
The Asaro head is for understanding form via faceted planes (great for sculptors, 3D modelers, lighting study). Bargue is observational copying for atelier students. Both are different jobs from Loomis and Reilly. Full comparison.
Have a question? Email qa@gridmakerpro.com or post in #technique on Discord.
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