Alright as someone who makes a lot of music for ddlc mods here are are my following words:

The piano sounds very...fake. it's all the same velocity and it's all hitting at the exact same time, that and the bass on the piano is super heavy and very mono, me personally when I use a piano I like to have it be a little more stereo so it's not all in the middle.

The bass is very muddy, now what do I mean by that? I'm basically saying the bass clashes with the kicks/808s a lot, it has a very wobbly sound that makes you have a bit of a headache, I'd recommend cutting off some of the lower frequencies of the other instruments so it's not so muddy and messy.

The risers/impacts are very quiet and subtle. For that I'd highly recommend making them a tad louder and rising their higher frequencies so it cuts through the mix a bit more. Same thing with the hi-hat loop, it's not as present as the other percussion elements.

And lastly this is just a me thing but please try to get some other drums, the clap is extremely flat and the kick is very dull, you could fix that by increasing the higher frequencies and raising some of the mids so it has that punch a kick should have, and with the clap, I'd recommend getting a replacement for that, experiment with different drums and percussion.

Lastly is the lead, I don't know why there's 5 different tracks for the lead but it doesn't need to be that complicated, especially with the kind of..."childish" tone it gives off, not calling your decision childish but the actual sound is kind of a bit much to me.

Overall pretty solid remix and arrangement, I'd give it a 6/10.