Hello kabeer48,
Welcome to Apple Support Communities!
If we understand your post correctly, you want to set a live photo as a watch face and have it run like a looped video every time you use your watch. We're happy to help!
Look for the Live Photo symbol in the bottom-right corner of a photo, then touch and hold the photo.
For more information about Live Photos, see the iPhone User Guide."
View photos on Apple Watch
To view a photo that you've chosen to use as a watch face and have it animate is to follow the steps above. Apple does invite feedback and feature requests via their product feedback portal: Product Feedback
Cheers.