They look really good!
How big is the tank?
You need to test for ammonia and nitrites in the morning. Even in a very large tank adding 60 fish in one go will cause a HUGE ammonia and nitrite spike which could seriously damage a lot of your stock.
Keep testing for a week and if ammonia and nitrites are present, do some large water changes. They need to be zero. If ammonia and nitrites are not present, keep testing anyway. If nothing happens within a week, you're a very lucky person!
If you don't test the water and you miss the spike, you've got to expect dead or sick fish. As amazing as they'll look, I'm really surprised that the shop sold you so many fish!
You will need a 500 gallon tank as a minimum when all your fish have grown up. I did that maths (using small average sizes, note) based on the fish in your signature.
If the fish exceed a small adult size (as many will), you'll be looking at closer to 600 gallons.
You also have some fish that will grow very, very big. Some of those plecs will hit two to three feet long - you're looking at a 10 foot tank there, minimum.
Good luck =)