The "use cookies" that it shows at the left side looks scary honestly, it's looking like a virus is spreading to the user's PC. I can say that you have a unique design but it's not probably the taste of most gamblers.
I already wrote above that there is nothing superfluous in the interface and this is not a website, this is a web application that has its own desktop and windows. This type of web applications is called web-OS. If we had other tasks, then we could add to this application everything that has a MAC or Windows.
You are discussing the form of the author’s design, but the design of the application is not in the form, it is always at the heart of the project, and the essence is for some reason drowning in the discussion of the form.
It's the first time to hear about a web-os or if I've heard of it before, I can't remember. It seems that you're building up in a different and unique way as I've mentioned and let's see what will be your next step so good luck with the development.