Sleek YouTube Thumbnail Design

I need a set of eye-catching thumbnails for my YouTube channel, each one reflecting a polished, professional aesthetic rather than loud, playful graphics. Your visuals have to work hard in a crowded feed, so smart use of typography, balanced whitespace and restrained colour palettes are essential... (Budget: ₹12500 - ₹37500 INR, Jobs: Canva, English (US) Translator, English Spelling, English Translation, Illustrator, Logo Design, Photo Editing, Photoshop, Typography, Video Editing)