This app is simply awesome. Its easy to use. The search and direct import could not be easier.
1. Search for an image.
2. Tap image.
3. Change border / clock background color and design.
4. Save.
Its that easy.
Note: after you make your first face, make sure you go to photos in the Apple Watch app and make sure you are syncing your Watch Faces folder. After that just set you face up using album or picture on your Apple Watch it self.
MrPhenozine about Watch Faces - Custom Themes & Live Wallpapers