Design for 4x Online guides

We would need a designer to create 4x online guides with on-brand design. The guides would have a cover and back page with image and short copy, and detail pages with text-heavy content. Based on a Google Doc version, the guides have around 15 pages.
We'd like to begin with one of the guides to create the initial design, then continue with the rest. As reference, see our website (https://nebulaconsulting.co.uk) and the attached branding guidelines and a previous version with outdated design and content.
Ideally would like to have all of them signed off by end of April, but date can be flexible.