Can I hang colorful calligraphy in my living room?

Of course.

Hiroshi, the wild goose also. Wild geese fly high and aim high. Snow mud claws are a metaphor for traces left by the past.

Good luck means "good luck". Hanging a good color in the living room at home shows that the owner has lofty goals and aspirations, which he did in the past. Good luck is with you. What's wrong with it?