Camoslash I just played your level and it’s pretty nice. It’s certainly very fitting for world 6 considering its difficulty. I did find quite a few issues however.
I feel the level starts off a little too hectic. I’d prefer you remove the sumo bro (and replace him with a different enemy), or move him forward a screen or two.
Your asking a little too much from the player here; you have to find and kickable object and back track just for a mushroom. I recommend putting a regular question block with a mushroom closer to the start of the stage (screen 1 or 2) and put a 1up in this block (shown in pic).
Why are there turn blocks blocking this pipe that doesn’t even go anywhere? I’m guessing you were planning a sublevel but omitted the idea later. So either add a sublevel or remove these blocks.
My biggest issue with the level is how many munchers appear all over the place in odd positions. Munchers placed like this just add unnecessary difficulty and I feel they are out of place considering the type of level you’re trying to make (a classic level).
I strongly suggest removing most of them, and put the rest in holes as shown here:
That’s how they've appeared in past Mario games and it feels much more appropriate.
Not a huge issue but I did notice some sprite memory errors when two volcano lotus plants were placed close together. Maybe try placing them further apart?
I only found one health power up in the whole level. I recommend at least on more after the halfway point. See if the player dies at the midpoint they have to run through the rest of the level without taking a single hit. That’s just a bit unfair.
Yes make sure you’re using lunar magic version 1.90 or there could be compatibility issues later when we try to insert the level. Either of those ideas are completely find with me. Not much is really “out of place” in world 7 since the world doesn’t have a theme like most others.