This image fits it perfectly!
I think your next step to advance would be increasing the max. bet since it's only 0.002BTC
How to do this would ofcourse imply a bankroll, which would be hard to get considering the website is pretty new and there's very little trust built
I'd advise you to find an escrow to hold the bankroll and process higher withdrawals manually perhaps
I'd be able to do this for you if you decided for this option.
I have never heard a gambling site use an escrow to hold the bankroll and I dont think it is a good way for a gambling site to do that. Most possible scenario for a new site to make sure that they are able to pay is by signing a message from the cold wallet.
Have you done it before? Holding a bankroll for a gambling site?
Signing a messege from a cold wallet proves you have the funds, not that users are actually going to get the funds.
A trusted escrow goes around this and users are secure knowing they will receive their money.
I believe it would be very hard for investors to trust their money to a new unproven website, they should try, but I believe it won't be a success.