What is the meaning of the サンドボックス in your title?
Is that the name of your casino in Japanese or Chinese?It looks cool,but I don't think that anyone outside Asia would understand it.
Anyway,your casino looks really nice.I can't find any flaws on your website.
The URL on your forum thread looks like this https://sandboxcasino.io/r/bittalk
What's that r/bittalk suffix on your URL?Are you trying to track the clicks coming from Bitcointalk.org?
This is a good marketing approach.Every good marketer must track and analyze all the traffic coming to his website.
I don't think that the "featured NFT" tab is necessary,but I guess that you want to take advantage of the NFT trend.
Good luck with this project,OP!