Cool game! I'm not sure why the currency for upgrades is separate from the money you're betting though? That seems like it would give the cash more meaning! Because you can take out a loan anyway, and you get money/second upgrades so early on.
Also minor nitpick but the button animations become very frustrating while playing, you have to wait say 0.5-1 second after each game for them all to show. And because they change position you may end up clicking the wrong one. Same with the redeal hand option, I think it would be better if they have a set position but are hidden/greyed out.
Great work though, I think you could turn this into something really cool :)