Two things I appreciate the best: The art as well as the music.
The music adds personalities to dungeons, areas or even bosses that would not be possible with just art alone. I really feel that Wangle’s done an amazing job with the OST of Realm, and with each new piece coming out, it gets better and better (imo at least). Apostasy definitely is my favourite theme. While a good number have criticised it for being too “slow” for an endgame boss theme, I actually don’t mind the speed, I’m more focused with how menacing the theme is and the despair/evil feel it gives at certain parts. That isn’t to say those criticisms are wrong, everyone’s got their own views and opinions in the end. After all, I think most of us can agree this is better than the generic RotMG theme of Wildshadow and Kabam days haha
And the art, dear lord the art is amazing especially for Oryx Sanctuary and the recently reworked dungeons. Like, if you have the time to stop for a moment and admire the setting of these areas, you can really see the sheer amount of effort and detail that went into making them. To put it simply, I love 'em, and it’s probably one of the main reasons I am excited to see the rework of other existing dungeons x)