Classical Choral Piano Sheet Music

I need piano accompaniment for a classical choral performance. The accompaniment should be provided in sheet music format, created using Sibelius.

Requirements:
- Expertise in classical piano arrangement
- Proficiency in Sibelius
- Ability to create clear, professional-quality sheet music

Ideal Skills:
- Strong background in classical music
- Experience with choral pieces
- Attention to detail and accuracy in notation

Please share samples of similar work.