I couldn't be more happy with this build as I now have a Windows Experience Index of 7.6! The only problem that I encountered was with the Cooler Master N200 case. There is a lip that prevents the HDMI expansion slot being used which was very frustrating. I had to saw a bit off my HDMI cable to get it to fit inside the slot. Also, the optical drive can get quite noisy. The fans aren't that noisy though, the case usually has two fans but I had a spare fan so I inserted one into the top. In hindsight, the things I would have done instead about this build is getting a different case and getting a regular HDD instead of a SSHD as I feel that it is unnecessary due to already having a 120GB SSD.
EDIT: Sorry, I thought I had uploaded photos of inside the case, evidently not. I have now added an overview photo as well as close-ups from different angles. As you can see, even though I have bought a semi-modular power supply, the inside is still quite messy. I will mainly be using this PC for work i.e. office programs, heavy internet browsing, watching movies and light-mid gaming.
The only problem I'm having right now is that the CPU seems to be idling around 63 degrees Celsius which seems to be a bit too high? EDIT: Turns out the CPU cooler wasn't on properly, my bad. The CPU idling temperature is now around 40 degrees Celsius.
EDIT: I have followed the advice given to me and improved the cable management! :D