Bold High-Impact YouTube Thumbnail

I’m updating the look of my educational-gaming channel and need a single thumbnail that instantly pops on both desktop and, most importantly, mobile feeds. The vision is bold and colorful, driven by warm reds, yellows, and oranges that create strong contrast against the YouTube backdrop... (Budget: ₹750 - ₹1250 INR, Jobs: Adobe Illustrator, Affinity Designer, Digital Art, Graphic Design, Illustrator, Logo Design, Photoshop, Visual Design)