Design professional representation of internally produced diagrams

Diagrams represent elements our leadership journey. A book is due to be published and course materials & marketing materials need to be produced as well as the need for these to be included on our website. We produced the original diagrams on powerpoint (file attached) one diagram (triangles)was tidied up by a design agency, but we now need both the 8ICOL and the 'triangles' recreated in a professional and coherent house style - that links to the colour scheme etc of our website. The job is pretty urgent as we have a launch event in about 10 days!