T-Shirt Sublimation Design Creation

I need fresh, print-ready artwork specifically for sublimation on T-shirts. The designs should arrive fully mirrored (where necessary), sized for an adult tee, and supplied in both high-resolution PNG... (Budget: ₹600 - ₹1500 INR, Jobs: Adobe Illustrator, Adobe Photoshop, Graphic Design, Illustration, Photoshop, Photoshop Design, T-Shirts, Vector Design)