Personally I thought you desaturated this a bit much. There's not enough contrast in the image to make it pop in black and white, so using the colors of the image helps draw attention. If this were specifically for Survival Games it may suit being less saturated to seem more dire/serious, but I still suggest a noticeable "spot color" to draw attention.
Otherwise, great job. In the video I can tell you know how to use the program well, and that's great.