Not sure how "new" your new tank is but I'm in agreement. It's a poor choice of fish for a newly established tank.
The fish best suited at this point is the clown. The butterfly and angel are going to have a rough go. Pearlscales BF's are a decent choice but do best in well aged systems. The Vermiculated angel is a very sensitive fish with a poor survival record. Again, a mature tank would enhance your chance of success. Personally, I would return all but the clown to the place of purchase and trade them for some hardier "beginner fish" that will do well for you and afford you some experience. Then you can move on to more delicate species. If your lfs sold you those fish knowing it was a new set up, find another lfs.