Some updates:
And some graphics planned for use in the Ashley's Mansion level:
Along with some of the possible music for said level:
And level ideas:
Beehive related level: Complete with barrel cannons, pegs (from King of Swing), Zingers, cartoony DK enemies and maybe a chase scene involving King Zing.
Bridge to Hell: A bridge level, a bit like Silent Span in Mario Fusion Revival or the bridge in Mario End Game. Except with the gimmick of the level getting darker and more gloomy as you proceed.
[Inside of a creature]: Mentioned in my tileset request topic, but yeah. You know the drill.
Abandoned Toad House: A trek through a Toad House that's fallen into decay after a monster attack. Maybe with ghostly undead Toads as enemies, for the creepy factor.
Royal Crypt: A mix of the level from the Minish Cap, the Bottom of the Well and the Shadow Temple from Ocarina of Time. You get to use the Lens of Truth to reveal hidden obstacles and fake walls and floors by pressing the L or R button.
[Something from the Wind Waker]: Not sure what, but some level or another. I was considering something based on either Dragon Roost Cavern or the Wind Temple, but it's unknown yet.
Stone Tower Temple: Based on Majora's Mask, with the gimmick being able to flip the building upside down.
Hyrule Castle: Self explanatory, references Link to the Past/Between Worlds, Twilight Princess, etc.