Dress code for ballet class is simple and neat: pink tights and ballet shoes, black leotard and skirt. This helps keeps the class together, and makes it so there's not unnecessary things to fuss with. It also teaches them a sense of professionalism, being dressed and well put-together to take class. It helps them focus as they dance as well.
However, once a semester, I have a "fun ballet attire day" when the girls can wear different colors/styles to class if they wish to. Since it's a special day, I brought my camera along and took pictures of each class. I'm blessed with some great students!

Wee Ballet 1 - ages 4 & 5
2 girls were missing that day, but these three looked sweet!
Wee Ballet 2 - ages 5-7
Learning to stretch far, even when it doesn't feel good!
Basic Ballet 1 - ages 7-9
We had a girl from another class making up a class this day (there's usually only 4). This is my smallest class, but that's allowed me to teach them more in-depth and help each individually.
Basic Ballet 2 - ages 6-8One of my largest classes, these girls are sweet but full of energy. It keeps me on my toes to help keep everyone focused. :)
Beginning Ballet - ages 10-14
These mostly-beginners in ballet are learning quickly!
Ballet I - 9-11
One girl was missing this day. The ages I've listed just reflect the current girls in the class - they aren't necessary the age limits.
Ballet II - ages 10-12
These girls work hard and are progressing well!
Ballet III - ages 12-15
Fun colors! :)