Oooo! I love a good MIDI pack. Thanks for sharing these!
I've been listening to these for the last few days, and I won't bother you with a huge blow-by-blow critique of the whole thing, I'll just talk a little bit about select tracks. Have tried not to be too critical.

"Black Label" reminds me of the Street Fighter II Vega theme.

"Checkmate" is a favorite, it's got a great 5/4 groove and some sweet riffs and melodies. I enjoy the way it swings between placid and heavy.
"Clutch" is another fave, with some great rhythms and drumming. Reminds me of Muse for some reason.
"Coward's Park" is pretty entertaining the whole way through except for that bassy outro that I think goes on for far too long.
"Crabs Don't Need Butter On The Ocean Floor", aside from having the best name for a song I've heard in a while, has some great rhythms and riffs and is very traditionally "doomy".
EDIT: Note to self, use this for an intermission track somewhere...
"Echoes of the Future" is slow and sombre but still quite interesting. I hear a lot of your influences pretty strongly here.

"Field of Korn" builds a little too slowly for me personally, but I really love its climactic outro.
"Folding" is just a really cool song, definitely usable somewhere! Same with "Gat Out of Hell" despite its short length.
"Joe Arpeggio" is a pretty cool track with lots of neat ideas, but it's kinda short and hence feels like it doesn't have as much direction as the other tracks.
"Little River"'s funky organ and brass are fantastic.
"Lure" is another very Doom-like song that reminds me of some of Mark Klem's older compositions.
"My Marriage is Fucked Up" suffers a bit from the same lack of direction as "Joe Arpeggio", but again the musical ideas that are there are really cool and catchy.
"Nest of Vipers" is long and epic and while it has a great feel and structure, some of the melodies feel a bit "disjointed" like fewer notes would've done the job well.
"Outerworld Class" has got some pretty rad drumming, but the melodies really let this track down - they seem to have no idea where to go.
"Page Removed" has some really interesting and coherent change-ups. Even its more complex melodies all interplay quite nicely.
"Primal Pool (La Brea)" is uhh... sorry, it might be my least favorite of this bunch. Very monotonous.
"Pyrrhic Victory" is, I fear, also far too repetitive to really be terribly entertaining for any Doom map that lasts its five minute length.
"Stone Chamber" is another cool Doomy track with a really ominous vibe.
"Toxic Hallucination" is heavy and slow-building and very cool once it really kicks off. You've got a great handle on drum programming.
"Triangulating" is a beautifully sombre track, though maybe a slight bit repetitive.
"Unconscious News" I'd say the same about, but it's slightly more rhythmically dynamic with the 5/4 pattern, and it keeps itself pretty interesting melodically throughout.
"Vette" is something I truly didn't expect out of this pack. Jazzy! I love it. This is in a league of its own.
Highlights: "Clutch", "Crabs Don't Need Butter On The Ocean Floor", "Folding", "Little River", "Lure", "Page Removed", "Stone Chamber", "Toxic Hallucination", and "Unconscious News".
Some tracks I haven't mentioned here just because I couldn't quite think what to say. Overall, while some tracks can feel overly repetitive, or in the reverse case have a few "too many ideas" for their length, I really have enjoyed listening to these and have recommended them to the mappers on my Discord server, so I thoroughly would like to see these get used in maps.
It's great to see new blood keeping MIDI composition alive. Please keep it up!
