This is J-Dude, and I'm submitting the first Art Page for Black Equinox. Basically a compilation of whatever has been "officially" done for the story, including chapter art, concept art, and renderings.

Rest assured, I've been hard at work on Black Equinox. I actually have more than two chapters written ahead of Chapter 4 right now. But since I really want to do this story right, I've been trying to get reviews from certain sources, to make sure I'm not making any dumb or rookie mistakes.

This is why getting the last two chapters to you guys took from about August to April. Well... that, college and other projects or pursuits of mine.

Anyway, I hope this is a worthy blip on the ol' EKG. And I hope you guys understand that I delay only because I want to give you something I'm not ashamed of. I could dump at least two chapters here right now, but I want to build this sucker to code, so to speak.

This image portrays the beginning of Black Equinox, when the hapless Plumeria and Peppermint stumble upon the Mandeville Arms facility, mere minutes after its arrival in Equestria. Artwork for Chapter 1, obviously.
This was 100% made by me in Photoshop, and took days of work. Lots of rockin' the pen tool and using gradients and stuff.
The two ponies in the image are actually 3D renderings of pony models I made. I'm not sure how well it came out, but you might notice I made their manes in Photoshop after the fact. I find they look more awkward than anything. And since I don't believe I rigged these ponies all that well, I'll probably just rip the GMod pony models if I do something like this again.

Chapter 2 art of the Library ablaze. This I can not take full credit for, as much of this image is taken right from the show and edited. It was originally from a day-shot, but I worked it to night, adding the flames, rain and fiery glow.
Ideally —because I'm sort-of a bastard— I would have added an image or silhouette of Twilight cradling Spike into the bottom of this image. But at the time no model of Spike existed, I lost confidence in my own pony models after Chapter 1, and while I can Photoshop non-characters pretty well, I am no character artist in any capacity.
Overall, I really liked how this one turned-out

As you might have guessed from the last two chapters, I more or less gave-up on making the full-sized sprawling chapter art pieces and am now taking a more minimalist approach.
Originally, Chapters 3 and 4 were one chapter, but it got overly long and I split them. I'd intended to render a concept image of the massive Mandeville Arms facility, but I just found it was taking longer to do so than it was taking to write the story itself. I settled on this imagery, showing an idea of the facility through the scene were the Mane Six are watching the tour video. Smaller, simpler.

The Mandeville Arms logo: an upside-down image of an AK47 iron-sight honed-in a little surrendering stick-figure. Upside-down because that way it looks like an "M." Probably not going to be inducted into a career in advertising for this, but I like it well enough.

A display-page for my model of the CID drones, the backbone of the Mandeville Arms infantry units. I originally sketched the design for this out on some scratch paper while I was at work one day, but followed the design in 3D nonetheless. I justified the time sunk into this thing by using it as a class assignment. I love combining work and play.
And if you're wondering about the odd blue highlights and reflections, I originally rendered this in an environment with a blue sky.

The Dynamic Tiling System, one of the staples of the Mandeville Arms facility in how it makes the structure infinitely configurable. This was a pain to get working, too. Unlike the CID model, the tiles themselves are rigged for movement, which was awkward and a royal pain.

This render is a far closer idea of what the facility looks like, but of course it doesn't have natural lighting or nearly as much empty space as this image suggests. Mostly it's 3D concept art.

Chapter art for Chapter 4, depicting Adrian Mandeville staring after the explosion that ultimately cost Twilight her home and Spike his life. The character art for Mandeville was done by well-known MLP artist Kloudmutt as a commission. Not a lot to say for this one. Like I said, I'm trying for minimalism in the chapter art now.

That's all for now, but thanks for dropping by! Chapter 5 coming soon.