not like that comparison is legit. the loligeddon screens were taken from the description of a current offer. those screenshots weren't taken properly in the first place (fucked up chroma, banding and what not) and are not really a good way to compare it to another set of screens. but keeping that aside since it doesn't have anything to do with your problem, i just wanted to prevent a unnecessary comparison discussion here.
for the comments above. his problem is not the difference between the loligeddon and his screens, but rather just his screens on that comparison compared to the same screens on his PC. so just ignore those loligeddon screens.
i can guess what problem you might encounter. try stripping your screens off of the sRGB colour profile. here
is your screen 2 stripped off of the colour profile (if you indeed have this problem, this screen opened in your browser should look like the screen locally on your PC). since the screens you took from the offer don't have a colour profile specified (note, the colours on the loligeddon screen are wrong in the first place and are not the desired outcome) and yours do, some browser won't show you the same colours. same goes for the colours you see on your locally saved images compared to the screenshot opened in your browser.
this hugely depends on your browser and setup, and can only be observed in specific situation. so this might or might not be your problem.
just for your confirmation, stripping the profile and comparing your screen to one i just took of loligeddons (1080p)
release look similar, besides the usual encoding differences.