Piano Part Enhancement in Music Composition

I have a piano composition that is already written but needs to be edited to be more complex.

Key Requirements:
- Enhance the composition to be dramatic, emotional, sad.

Freelancer Skills and Experience:
- Proficient in music composition and arrangement.
- Experience working with piano and understanding of its capabilities.
- Able to add complexity through arpeggios, counter-melodies, and chord extensions.
- Creative and able to propose and implement enhancements deemed possible.

I am open to any enhancements that can increase the complexity of the piano part.