I have a minimalistic logo attached to this post, which i created in AI. Notice the mask which is attached to the left whale which i have marked. Now i wand to import the file to AE. Lets say i want to reveal the left whale fist without the mask. After that the right whale crosses the left whale and just in that moment i want to animate the mask aswell. How is that possible or what is the best way to create a mask in adobe illustrator which is easy to work with in after effects to?