Sideloading can only be as safe as the user is knowledgeable, but it only uses Apple’s existing restrictions so no rules are broken and no exploit is required like a jailbreak. Current sideloading options are AltStore (https://altstore.io), appDB with their Rickpactor (https://appdb.to), iOSgods with Sideloadly (https://iosgods.com), and Cydia Impactor if you have a paid Apple developer account... Source: about 3 years ago

Have a look on https://sketchmob.com/ , has many different artist with a variety of styles and price ranges. I use this site a lot. Source: over 1 year ago

If there's a particular artist whose style you like, see if they do commissions. Maybe try searching for the characters on DeviantArt to find an artist who already has a familiarity with the franchise. You can also get art done from sites like Sketchmob (though, you may need to find some reference photos to give the artist an idea of what you're thinking, I'm not entirely familiar with the procedure there). Source: over 2 years ago

What's more important is this beautiful work of art! We have an excellent piece by "mapo_tofus" on sketchmob.com of Lucina playing the clarinet. I essentially held an amino poll with 5 characters to potentially be drawn playing the instrument, and Lucina won, and I actually wanted Lucina to win anyway, although you might be disappointed when you find out who she won against. Source: almost 3 years ago