Photo Thumbnail Design Creation

I need a set of clean, eye-catching thumbnails prepared for a collection of photos that will be published online. Each original image is already edited; what I’m missing are the smaller, consistent preview graphics that invite viewers to click through.

I’m flexible on the creative approach—modern, vintage, minimalistic, or something in between—as long as the final look feels cohesive across the whole batch and follows best practices for sharpness, clarity, and legibility at small sizes. If you have proven techniques for balancing subject focus, color grading, and overlay text (when useful), that will be appreciated.

Please let me know:
• How you typically size and optimise thumbnails for fast loading without quality loss
• What file formats you will supply (PNG, JPG, or others you recommend)
• Your expected turnaround time per image and for the full set once you see the photo folder

I can share the photos in a cloud drive immediately so you can start drafting a few sample layouts. Once we agree on the direction, you’ll complete the remaining thumbnails and deliver the ready-to-upload files along with any editable source files you create.