Let's talk about your legs.

^This is what your legs need to look like. I suggest standing in front of a mirror and practicing. Practice until it feels like a second nature to you. This is going to stick with you even when you're in hard shoes. 

Make sure that only one of your knees is able to be seen from the front.

Turn your back foot so it touches the outer heel of your front foot.

The inner part of both feet should be visible. 

The outer part of both feet should be facing away from the front. 

You need to keep this posture while dancing. Point your toes and cross your feet. It's crucial to maintain this posture so your movements look clean and perfectly polished. 

That's pretty much all you need to know about that particular position.