British English (4), what to say to praise someone?

In life or in work, we also need to praise someone or often get some positive feedback from colleagues, leader, or just simply others... what would they say and what would you say when you see something is positive and interesting?

Good, well done, great, brilliant, excellent, superb, smashing, marvellous, fantastic, you are a star, this is amazing, wow, not bad at all,

and...?