Realistic Twitch Thumbnail Design

I’m preparing a new Action-Adventure stream on Twitch and I want the thumbnail to grab attention instantly. The style has to feel realistic—think gritty textures, dynamic lighting, and depth that pops even in a quick scroll.

Here’s what I need from you:
• One finished thumbnail optimised for Twitch’s current display specs (I usually work with 1280 × 720 px at 72 dpi, RGB).
• A fully layered PSD (or compatible) file so I can tweak text or minor elements later.
• Smart composition that highlights the game’s action-packed atmosphere without clutter; the focus should lead the eye to the central character and stream title.
• Colour treatment and sharpening that hold up on both desktop and mobile previews.

If you prefer Photoshop, Illustrator, or even Procreate for certain elements, that’s fine—just deliver the final PSD. Turnaround within a few days would be perfect. Let me know if you have portfolio pieces in a similar realistic style; I’ll share reference screenshots and text once we start.