veey nice video . like you t shirts and cards good marketing ideas.. one tip on spreading this art.
look there are very strong routines out there that all close up magicians know and love to start with, and some of them were created in diffrent places and have culture connection to there origin, try to create your own opener that will be waht brazilians are familiar and know.. those cards are a part of your local culture? sponge balls? you can do magic with anything dont limit yourself to classic.
i am from israel and what can say pepole here just love mentalisim , nothing else you can get paid a lot more think about this