um... neither? Possibly the cooler master since it has a few more vent slots at the front for air intake, but it looks like you're trying to go with the asthetic of RGB and glass panels.
Might I recommend something else entirely?
The Fractal Design Meshify C will get you all that sexy side panel goodness with hella airflow from the mesh front panel while also allowing you to see RGB lighting of fans at the front.
here's the product page for pictures and the different variations of it (such as Dark TG or Clear TG, etc.)
https://www.fractal-design.com/home/product/cases/meshify/meshify-c
Seeing as how you were looking at the coolermaster which is a microATX case you can get the Meshify C Mini.
It's all black, with a dark TG panel and currently sells for $75.52 on Amazon.
https://www.amazon.com/dp/B07BCGCPFH/
Otherwise, if you would want mid size tower with support for full size ATX, you can get the white version with clear TG side panel for $76.50 on Amazon.
https://www.amazon.com/dp/B07BPP9KYD/
The other two options which are also full size ATX mid towers are both black versions with either dark TG or clear TG and they both cost about $100.