I was sadly unable to complete this level from start to finish. I gave up around the thirteenth try. The train moves incredibly fast, and the enemies are unpredictable due to this speed. My reserve item rendered useless because of the train's speed as well, as the item flew off the screen before I was able to get it.
This level had a particularly fair bit of graphical clash. Super Mario World doesn't blend well with Super Mario Brothers 1, 2, or 3. There were large amounts of graphical cut-off scattered about the level, though I do like the train graphics themselves. The enemies seem randomly placed around the level, and there is practically no play-ability here. You sit on the train, get hit by the unpredictable oncoming enemies, and then the train stops. I was unaware that a Piranha Plant would pop out of the ground, I would refrain from doing that again.
It seemed like a fairly decent and original idea for a level, but it wasn't executed properly, and you served it with unappealing visuals and game play. You might want to add a bit more custom graphics to this level, as well as slow down the speed of the train, maybe? The music was also a little unfitting for this type of level, but it was partially enjoyable.
I used to be 8bitmushroom but not anymore.
If you need to get in contact with me, message me on Discord, or find me at SMW Central's Discord server where I moderate.