Sleek Modern Business Folder Design

I'm seeking a designer to create a template for a standard-sized business folder for my real estate development company. This folder needs to be designed on all four sides - front, back, and both inside sleeves.

The design should be:
- Modern and sleek
- Elegant and stylish
- Capable of delivering a 'WOW' effect to clients

The folder will be used to present project proposals to clients, so it needs to reflect the strength and quality of our brand. It should incorporate:
- Our company logo prominently on the front cover
- Masculine colors that convey class and strength
- Some images from our previous projects, blended into a classy design

Ideal candidates for this project should have:
- A strong portfolio of modern, sleek designs
- Experience in designing corporate materials, particularly for the real estate sector
- A keen understanding of color schemes that portray strength and quality.