Thanks for your entry. Note that we will use the icon for iOS as well as for Android mobile app. So it should work on both platforms.
If possible you could try to align the design to the vitruvian man as can be found here: https://en.wikipedia.org/wiki/Vitruvian_Man
We're looking for an icon showing the square and circle as well as the two bodies inside it but in a simplified version so it can work as a mobile app icon.