~ snip ~
The website is lacking a lot of elements like register/login that is supposed to be seen when to open the website the design was not yet catchy and also just a plain design, in my opinion, look like a normal casino website. Some of the website's assets came from other creators. I think the website needs just to adjust a lot of elements and improved some of the images. I think the website just means browsing gambling games but still, you cannot trust websites that have an unprofessional design. I could make a website that is better than this in just a week.
if what i read is correct , the op only list gambling sites specifically slot casinos therfor its normal to not see a login or register button .
having a good design is not also a requirement here because like i said earlier , he dont own any website but what important for him is to write a good feedback if which slot casino are good and bad . you can still contact the op if he wants to redesign his site by you . let see if what design are you trying to show off