So, I have to say that this surprised me quite a bit. With how busy you've been with your thesis, I didn't think you'd get enough time to sit down and work on anything, so this is a very pleasant treat!
So, hands down one of my favorite things about Steins;Gate is the artwork of the series. While I never really got into the TV show, I absolutely adore the artwork. However, I really, really like what you did with it. You put your own spin on it, and it looks stunning! I especially love how you painted them and the texture added as well. Hands down, it really shows off your talent as an artist and that, as previously stated, you can give your own feel to something that is already plenty unique on it's own and for that you deserve major props.
Now the background. Oh gosh how I love this so. Generally speaking, when people go for gritty, it ends up being far darker, but this has such a light feel to it and that is my favorite aspect of this wallpaper. The color palette is nice and neutral as well, which really helps for the characters to pop out, and the gears in the background were a very night touch to give it that timey-wimey feel to it. The fact that there are several different gears in there and that they are layered in the way they are just makes it that much more of a visual treat. Combined with the gray splatter and you've got one heck of a sexy background. Normally, I would be put off by such a contrast from the text and the background, but the way it stands out I really like with this wallpaper.
So, what else can be said? It's a great wallpaper that I hope is very appreciated, because it is a nice visual treat that's simplistic in look, but complex in nature. Now, the only way to fix that Doctor Who cold is with one simple remedy. We must have a Doctor Who marathon!