Hey all, first post after making an account.
I've been working on a sci-fi level/mod kind of thing and wanted to share some spritework WIPs that I made alongside it, only the gun is go into the mod currently but people are free to use any of it. So this is kind of halfway a teaser but people are free to nab stuff, even the base ideas. By the way anything original in my mod will be open permissions, there's a couple textures and sprites in it that I'm not posting here currently.
Everything below will hopefully be "done" one day, meaning rotations and attacks for the enemy sprites, which I'll either edit into this reply or make a new one for.

Pistol that I call the Renegade, as it's inspired and *partly* traced from the pistol from Command & Conquer Renegade viewed at a steep enough angle to look like it has prongs at the front. Originated because I wanted more futuristic replacements for Doom 2's pistol and shotguns.
Biggest issues I see are the iron sights not looking centered (mostly in the png, I don't notice in-game) and the right hand being a little sharp, but if you wanted to use it as-is it's easily tweakable.

Enemies I'm working on. From left to right we have NOD and GDI soldiers inspired by Command & Conquer (probably due to aforementioned game putting it in my head), a more original sci-fi soldier who has a bit of unintentional Titanfall vibes, two original sprites made by trying out posing models in Source Film Maker, a red Doom marine with skin swapped for grey and a subtly sleeker visor, and two variants of a non-zombie chaingunner, one without helmet and one with a slightly heavier variant of a marine helmet.

Little teaser for a Quake scrag, after seeing the custom "Wicked" enemy from Realm667 that a few mods use. The above image is currently a bit grainy, but since first posting this I've actually done a lot, not really worth taking pictures yet but it now has Doom-like spriting, all rotations and a custom attack. I may release it on its own as a resource.
Since you're reading this, thank you to the zdoom forum and all the resources people have kindly made. Learning to mod has been a fun use of ample free time, and other people's work has been a huge help whether I use things directly or just learn by example.