In-Store Mobile App Promo by OVAL on CGguy
https://elements.envato.com/in-store-mobile-app-promo-FKDQRMW
Free 
Carousel Mobile App Mockup by OVAL on CGguy
https://elements.envato.com/carousel-mobile-app-mockup-VKEFY9X
Free 
Fashion Time Broadcast Identity by OVAL on CGguy
https://elements.envato.com/fashion-time-broadcast-identity-VXM7QSZ
Free