Color is a moving target
Green Iguanas shift color with mood, age, temperature, and breeding state. Bright emerald in a young animal at a basking peak. Duller gray-green in a mature adult. Orange flush along the dewlap and spines in a breeding male. We read the specific color from your photo and renders it at the correct saturation — no defaulting to a uniform 'iguana green' template.
Dewlap, spines, third eye
The dewlap throat fan, the dorsal spine row from neck to tail, and the parietal eye — a pale scale on the head that genuinely registers light — are the three structural details that mark the species. Each is read precisely off your photo. A relaxed dewlap stays relaxed; a fanned display stays fanned. The spine row keeps each spine distinct.
Which styles land hardest
Library is the strongest pairing — the iguana reads as a prehistoric scholar in a wood-paneled study. Knight and Highland suit the dorsal-spine silhouette; the spines pair with armor and rugged terrain. Vineyard amplifies the emerald against grape greens. Watercolor handles the scale texture and color-shift palette without flattening species detail.