Yeah, the interface is somewhat horrible. You can get an image from the wiki, but only if the search function in the UI can find it, but as we know, Wikia search in all forms is awful. Just download the images you want to your computer and re-upload them, if necessary.
Just keep playing with it. Something is better than nothing.
Take a look at Help:Community Apps for Admins... Maybe this wiki is eligible to have Community app. You can ask Fandom staff via Special:Contact/general if they can start the process to get a Community app or if there is something that still needs to be done to meet the requirements.
Okay, I have some news from the other wiki I was a talking about. Apparently the main admin already asked about getting a Community app, but Fandom staff said they were backlogged with other higher traffic wikis being worked on for an app.
This wiki should have a decent chance. Although it is over 800 overall on WAM, it is in the top 100 of Comics category.
I see. Well, our request was responded by the Fandom staff.
We have a selection process for community apps and I will make sure your community is considered. However, we can't guarantee your community will get its own app, and if it does, it may take several months until you see it in the app store.