Mobile Number - Sign Up

Hey hi, this is the Mobile Number Sign Up Flow. 

So, my intent when I was designing this flow was not to give the keypad in front of the face, I wanted my user to tap on it. Once he taps on it, the keypad will arrive from the bottom and the image will stuck in its actual place (ex. Right side image)....

Thank you, I need your feedback on this, Be Safe :)