Modern & Minimalist Wallpaper/Ad Designer

I'm in need of a talented designer who can create modern and minimalist wallpapers and ads for me.

Ideal Skills:
- Proficiency in graphic design software
- Exceptional understanding of modern and minimalist design principles
- Prior experience in creating wallpapers and ads
- Need a demo work so that I will proceed with that
- should collect information and create the context

Final Deliverables:
- Design files in JPEG/PNG format