We are suppose to design a network infrastructure for a company. I did the infrastructure below but my professor did not like it> Can somone make the infrastructure btter

Introduction The objective of the individual project is to get an overall understanding of various data communication technologies used to support business need. Student should be able to design a new data communication infrastructure to meet the needs of a XYZ business, or study in an existing infrastructure of a specific organization. For instance, you are hired as a network consultant to propose a new data communication infrastructure design for a small online web hosting company (ezHoustonHosting.com). The minimum requirement design includes as follow Hardware . 800 hosting servers including 300 dedicated servers, and 500 virtual servers with hosting 2500 shared hosting servers 2 DNS servers . 2 Active Directory servers Printer server File server Database server Backup server Email server . 1 Web server hosting the company website on the Internet Intranet server Voice Over IP communication for less than 100 employees Guest and secure wireless communication Routers . Switches Circuits And other necessary hardware Note: Please feel free to add more to this scenario if you think is necessary to improve this company operation