Title: Struggling with face consistency in AI festival photo generator — moved past Nano Banana 2, what API is giving you 90%+ face accuracy?*

Building a product where users upload their photo, pick a festival-themed template (think Holi, Diwali, Coachella-style setups), and get a stylized version of themselves in that scene. The prompt is pre-written on the backend - users just select a template and upload. Currently using Nano Banana 2 for face-swap / face-consistent image generation and hitting around 70-80% face accuracy - which is honestly too low for a consumer-facing product. Faces are either slightly off, lighting doesn't blend well, or the likeness drifts when the style is heavy.