I also share the idea with few others that nothing wrong with the GUI design if there are similarities with other gambling platforms. If the name of the casino isn't displayed clear in top of every page, i am sure none of us would differentiate between various casinos in the market. And if someone doesn't like the design, i don't think it's a good idea to hurry up redesign. You may spend your lifetime redesigning because it's a matter of personal tastes/preferences.

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I think you need to provide further details about your activity license (if any), and if you are really a Non KYC casino since there is no mention to identity verification in the tos, and about your marketing strategy in the near future. I hope there will be advantages for bitcointalk community.