This app was mentioned in 15 comments, with an average of 2.33 upvotes
Yes. The only two large image complication providers that come with Wear OS are the current album art and a random element art.
Some good apps that have a custom image complication:
Moods: https://play.google.com/store/apps/details?id=com.ustwo.watchfaces.moods&hl=en_US
Moods integrates directly with Google Photos so if you use that you can download images directly from your photo collection
NavExplorer: https://play.google.com/store/apps/details?id=com.turndapage.navexplorer
This is my file explorer app. You can transfer photos from your phone or through an FTP client on any device directly to your watch. There are two complication providers in NavExplorer. One lets you select one of the photos on your watch and the other will randomly shuffle through all the images on your watch.
There may be some other apps but I have not heard of many. After you install one of these they should appear as options in background selection.
Yeah, the Moods watch faces are a free download from Google Play store.
I'm pretty sure that the Outlook watch face gets installed with the BUI5 firmware update as I have it on my GW4C which has received that update but not on my GW4 LTE which has not.
Step 1: Installs Looks and/or Moods on your watch: https://play.google.com/store/apps/details?id=com.ustwo.watchfaces.moods&hl=en https://play.google.com/store/apps/details?id=com.ustwo.watchfaces.hero&hl=en
Step 2. Pick your favorite-looking watch face out of those two packs.
Step 3. Long press on the watch face to bring up its configuration screen.
Step 4. Select a Layout with the number of complication slots you want (it sounds like you want 4).
Step 5. Set sunrise/sunset, moon phase, weather, and your time zone.
Has everyone got this pack too? https://play.google.com/store/apps/details?id=com.ustwo.watchfaces.moods
Last 2 images in screenshots: https://play.google.com/store/apps/details?id=com.ustwo.watchfaces.moods
I don't have this watchface exactly but you'll probably like the Do watchface from this set: https://play.google.com/store/apps/details?id=com.ustwo.watchfaces.moods&hl=en
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Also Sectograph has nice customisable watchface:
https://play.google.com/store/apps/details?id=prox.lab.calclock
I found out. I was right - this is "Do" watch face by ustwo with custom wallpaper. https://play.google.com/store/apps/details?id=com.ustwo.watchfaces.moods&hl=en_US&gl=US
Black Ticwatch E
Exercise watch face form Moods Android Wear Watch Faces
Modified Black UI:
[TUTORIAL] How to change the background color of the Ticwatch SE to black
The watchface is Do from the Moods watch faces collection.
So, what you'd do is find a watchface that you like that supports a background complication. I don't know whether any of the built-in watchfaces for that particular watch have that feature, but there are plenty that do (for instance, most of the Moods and Looks faces do). Then you'd use an app like Muzei which offers a background complication that you can set to whatever picture you like.
https://play.google.com/store/apps/details?id=com.ustwo.watchfaces.moods What about this watchface? Can you grab that too? @Marc1510