Dynamic YouTube Thumbnail Design Needed

I need custom thumbnails for an ongoing series of YouTube videos. Every episode has a slightly different tone, so the visual style will shift as well—some weeks a clean, minimalist look feels right, while other topics call for bold, vibrant colour, and the occasional video needs a crisp, professional touch.

Regardless of style, each thumbnail must include:
• A well-cut photo of the featured person
• Short, eye-catching text that matches the video title
• Simple icons or graphic accents that reinforce the topic

Core specs: 1280 × 720 px, under 2 MB, delivered as layered PSD or AI plus a ready-to-upload JPG. Turnaround is 24 h per thumbnail once I supply the assets and brief. The final image should pop at a glance, read clearly on mobile, and stay on-brand with the channel’s palette and typography.