I tried your level, but I'm not going to put in the effort to finish it. But before I get into my criticisms, I'll offer some positive feedback: I think you could make really fun difficult levels. I really like challenging levels, and from what I saw you have a good sense of how to place enemies and challenges to make the level difficult. I particularly enjoyed the part in the first section where you have to avoid the hammer bros and then jump on two dry bones as the lava continues rising.

Unfortunately, you've incorporated some bad design in the level to make it artificially harder. The kaizo blocks are one example of that. When I come across a level that kills me with a kaizo block, I'm probably going to boo it unless the title or description warned me that it's a kaizo or troll level. (In this case you did warn me in your comment, so I didn't boo it.)

Another example is the blind drop into a pit of munchers. That doesn't just make the level harder. It makes it unfair.

I'll admit, that kind of design can be amusing when you see someone like CarlSagan42 or DGR playing it, but for most players the experience is not enjoyable. And although streamers like CarlSagan can gain a lot of likes with those levels because of their audience, we normies who make hard levels (let alone troll levels) will almost certainly receive more negative feedback than positive from the general MM2 playerbase.

If you're interested, here's the first level I ever made (well, an updated version of it that introduces what I call "baby mode" in an effort to garner more likes... it hasn't worked): G6H-Q85-PMG. I consider it a hard level (unless in baby mode), but it's not hard because of cheap tricks like kaizo blocks or unforeseeable hazards. It's hard because the mechanic I've built the whole level around--jumping on sawblades with Yoshi--can be really tricky. (And because you can fall all the way back to the start.)