This is a beautiful look app well done.
A few off the bat issues.
When selecting cards there's nothing to tell you how many card to select. Consider adding a title saying "Please select X cards" and a count "3/10 cards selected"
Another button, "Pick for me" here would be great. The way I do tarot in RL is I shuffle the deck and wait for the cards to fall out. :) This would be a great addition.
Final suggestion. In the What do you want to do a reading for, consider having a Textbox that the user can type in there own.
For me personally the three options are not really what I would look for answers, I am happy in love and work. Maybe you plan to add more options as days go.