Very good!! A couple bugs though:
Stuff related to the easter egg content are in Portuguese even when English is selected.
Attempting to change your bet from $0 during hold 'em results in the following error:
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ERROR in action number 1
of Step Event0 for object obj_poker:
Variable obj_poker.pk_change_bet(101092, -2147483648) not set before reading it.
at gml_Object_obj_poker_Step_0
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gml_Object_obj_poker_Step_0 (line -1)