I'm going to try to be as objective as possible here.
With the main menu, I can see what you're trying to do here but my god nobody needs this amount of bells and whistles. It all just adds up to a really cluttered, uneven, and aesthetically poor main menu. You should try to make just a plain version and make the other version a customization option.
With the actual HUD: the mix of lime green, red shadows, random boldface font, and some pretty bad sizing makes everything look really cluttered. (especially the damage numbers; those are a lot bigger than they really need to be). You should also try to keep your heal/damage colors consistent between your main hud and your spectator/targetid, otherwise it just gets confusing (especially for casters).
Also, that killfeed is in a really awkward position (and apparently it changes position from place to place??). I also don't get the random teamcolored line underneath the targetid--it just doesn't look good right next to each other (plus I don't think people need to be told what team they're on when looking at someone else).
In some places you haven't even taken the Cerbetica font from rayshud off yet--you should fix that (also remove the random division lines from the scoreboard).
I understand you say you aren't an aesthetics guy but a hud is about 90% aesthetics. If you wanted to just make a bells-and-whistles main menu, just keep it as a hud mod.
Just my two cents.
(note: the disparity between comp-focused huds and casual huds is really large, if you're not really focusing on making a competitive hud take everything I say with a grain of salt)