Terrible App!!
The app is very poorly designed. You have to download multiple backgrounds at a time instead of them giving you the ONE you want. If there is a way to add the emojis, I havent figured it out yet. In the picture it shows that you have to type them on the phone in the Watch App. As far as I can tell you cant even edit the watch face in the Watch App.
I dont have one so shut up about
iFaces - Custom Themes and Faces for Apple Watch