Modern Bathroom Design & 3D Rendering

I'm looking for a skilled interior designer to create a modern bathroom design with 3D rendering. The design should feature a neutral color palette and include a bathtub, double sink, and walk-in shower. There is 3 main bathrooms, a guest bathroom and a guest toilet.

Requirements:
- Expertise in modern interior design
- Proficiency in 3D rendering software
- Strong understanding of neutral color schemes
- Experience with bathroom layouts and fixtures

Ideal Skills:
- Interior design certification
- Portfolio showcasing modern bathroom designs
- Attention to detail and creativity

Please provide your portfolio and estimated timeline.