Ah yes, Stormy Stronghold. I haven't actually done much about it regarding level design or anything, since I knew you would want to change it.
However, I have
been working on a brand new tileset for this level, so that it actually looks
like a castle, not a random series of floating islands.
Level 168 sample level
This is how the tileset looks so far. The idea I had was to create a sort of "ruined" elegant castle in the sky, that was conquered by Hindenbird and is using it as his base of operations when he's not on the "DUK" blimp.
I was inspired by a few things, but mostly Donkey Kong 64's Creepy Castle level. I thought the "stormy" theme would complement the dark, almost vampiric theme this level has. Except instead of the undead, you're dealing with Hindenbird's entire army, including Bullet Bill blasters and Jeptaks, while seeing the captain's face plastered everywhere. On banners, bricks, and even portraits. A "narcissistic" personality seems to fit well with this character in my opinion, at least with a sinister grin like that.
Sadly, I've put finishing this tileset on hold because Magi wanted to make a few changes to Hindenbird's design, so I'm waiting to see how that goes before I finish the set. Plus, I've been working on Nexus Norvegicus to get it finished, graphics and level-design wise.
Come help save Super Mario World Central Production 2 here