A tunic and leggings are a standard uniform. Mix and match colors, dress it up with wedges, a cool necklace, and hoop earrings or dress it down with funky boots, a fun scarf, and a cool jacket! So versatile!
Don't add too many layers. If it looks like too much, it probably is. Not to mention any names, I am sure you have seen those celebrity photos where the global boho look is destroyed by using too many long layers, it is as though the celebrity tried too hard. Also, if you are not very tall, long layers will only accentuate this.. So tread carefully when adding layers.