I expertise in AR development and can give you added advantage for your requirement especially for the animation and UX section.
Relevant Skills and Experience
AR, uNITY 3d , Vuforia (As a evangelist for unity technologies , I also have access to pro features)
Proposed Milestones
£222 GBP - Trackers and Loading, Sync and Stability
£242 GBP - Animations and Audio Sync
£258 GBP - UX, UI, polish and performance optimization
£22 GBP - Automated Testing and cross Platform Publication
Additional Services Offered
£1 GBP - Design and UX
Is this targeted for mobile platforms ?