I want to gift my tutor
We've been together for over a year. This weekend will be a milestone lesson for me, then I'll take a few weeks off, and so will she. For context, we are quite close, and we're both women. She has worked for my schedule so many times and frequently gives me more time than what I booked, so I want to show my appreciation.
I want to gift a present, but I'm not sure what is appropriate. She lives in Spain. Is an Amazon gift card to the Spanish store an appropriate present? If so, how much? Is 100 euros reasonable? I'm not European, so I don't want to cause any awkwardness or send an inappropriate present