Abstract Textural Background Illustration

I need a fresh, abstract background created in Illustrator that feels rich with texture rather than relying on obvious shapes or figurative elements. Think tonal variation, subtle depth, and tactile detail—something that instantly adds character behind headlines, UI blocks, or product visuals without stealing the spotlight.

Here’s what guides the brief:
• Style: fully abstract, no cartoons or photorealism.
• Core concept: textural elements are the star. Brush-like strokes, grain overlays, distressed edges, paper fibers, or layered gradients—whatever conveys a sense of touch in a clean vector format.
• Texture family: I’m open. Organic wood grain, concrete grit, woven fabric threads—choose what serves the overall mood best and keeps the asset versatile.

Deliverables
• One high-resolution, fully editable Illustrator (.ai) file with clearly named layers.
• An exported RGB PNG and CMYK PDF at 300 dpi for immediate use.
• A brief note on any brushes, patterns, or effects you build so I can tweak colors later.

If you’ve crafted similar abstract texture pieces, a quick sample link will help me decide fast. I’m ready to move forward as soon as I find the right style fit.