Good luck! Seems great to me! I'm not good enough to do a insane rated one but I hope it gets accepted. The only thing is that the tower theme isn't original. Hopefully if you could make it seem like it is more of a Roblox related tower by having decorations that clearly state it, it will be accepted! If you don't get it accepted this time, try and try again. It is amazing that you are submitting a map but to become a well respected mapper on Manacube, it takes patience and trial & error. I really hope you read this and build more great things in the future! Also remember, most maps aren't accepted because of their looks, variation, and difficulty. Most maps are rejected because of a unoriginal theme! :)
Yeah, I get that it may not seem like it has a Roblox theme at a first glance. I'm sure that at least 97% of Manacube parkour players (I'm being generous with that number) don't play Juke's Towers of Hell, so I'm going to take the opportunity to explain the theming a bit more while I still can.
Basically, Juke's Towers of Hell is a Roblox obby game, which is basically the Roblox equivalent of a Minecraft parkour. The goal of the game is to beat various tower-style, checkpoint-free obbies of varying difficulty (my tower has checkpoints on each floor, in accordance with the suggestion of a mapper). The game itself is divided into two worlds: Obren's Inferno (themed on Dante's circles of hell; "Obren" refers to ObrenTune, the creator of the game), and the Spatial System (themed on the solar system). Because Obren's Inferno is the original world, I chose to use some of its elements in my theme; the small islands surrounding the tower reflect the game's depiction of hell as you go deeper into the Inferno (grassy, then cavernous, then volcanic). Furthermore, the stone structure in front of the tower is a sort-of recreation of the Ring 1 lobby:
(Below: a recreation of the Ring 1 viewing area, which is shown at the beginning of the video)
The tower itself is inspired by the Tower of Difficulty Chart in Ring 2, whose difficulty increases as you ascend the tower. The color of each floor is the same as the color of each official difficulty within Juke's Towers of Hell, where the first floor is green (easy, the easiest difficulty) and the last floor is white (catastrophic, the hardest difficulty). Because of this, difficulty itself could also be considered a theme of this tower.
https://jtoh.fandom.com/wiki/Tower_of_Difficulty_Chart