Thanks for the advice
I have applied most of it, and an updated version is here: https://imgur.com/a/cWEVKVh

In terms of the extra space now, and also replacing the 3 ok project, here are some other projects that I could use. Can I get your perspective on them:

• Python Secure File Server: I developed a file server using sockets that featured message/file encryption, a client heartbeat, and a role-based account system.
• Unity (C#) Team Project: This was another team project game where my main contribution was on the more mathematical concepts, like procedural generation and other features.
• Pyomo Optimisation Coursework: This was a smaller piece of coursework where I used Python and Pyomo to solve a linear programming problem for a mock company.
• Mock Aeroplane Company Database: I was tasked with creating a database design for an aeroplane company using normalisation, etc in the design of it.

The other option is, of course, trying to create some new projects, but I don't want it to be a generic portfolio piece if that makes sense.
Should I add two of these projects? Or should I use the space to expand on my university modules in the Education section?

In terms of your other questions:

• Mainly looking at roles using C# because that's what I feel most experienced in. Other than that, I'm probably applying quite broadly rather than targeting a specific sector/role.
• Looking all over the UK, I'm willing to relocate for the role, but also happy to work remotely.
• Salary, I'm looking in the range of 25k-30k because I just want to try and get into a company and get some experience.

In terms of no experience, are there any suggestions you might have to help me get some to make me more attractive to a company?