Sleek Water Carton Design

I'm seeking a designer to create a modern and sleek design for a 200ml drinking water carton tetra pack. This carton will not only sell water but also serve as an advertising space for local businesses.

Requirements:
- Modern and sleek design
- Space for local business advertisements
- Highlight brand logo and name

Ideal Skills and Experience:
- Experience in packaging design
- Strong portfolio with modern design aesthetics
- Familiarity with incorporating advertisement spaces in product designs
- Ability to work with brand logos and ensure they are prominently displayed

Please provide samples of previous work and a rough estimate of your design process timeline.