Help with some element of Branding Guidelines

I'm seeking an expert to develop a set of comprehensive brand guidelines for my business. The guidelines should cover:

Current Branding Assets:

Logo: Already have a set of logos we are happy with

Fonts: We already have our typography sorted

Scope of Work:

We need to build out the following brand assets:

Colour Palette:

Develop a secondary colour palette that complements the logo and conveys the brand’s values and personality.

Design Elements:

Create icons, patterns, textures, or graphical elements that can be used consistently across marketing materials.

Develop any necessary supporting visual elements to enhance the brand’s recognition and consistency.

Imagery Style Guidelines:

Define a style for photography or illustrations that aligns with the brand identity (e.g., tone, filters, composition).

Recommendations for stock imagery or custom illustrations.

Social Media Templates:

Design templates for key platforms (e.g., Instagram, Facebook, LinkedIn).

Templates should be editable, adaptable for different campaigns, and aligned with the overall brand aesthetic.

Brand Application Examples:

Provide mockups to show how the brand should be applied across various mediums (business cards, brochures, website, merchandise, etc.).