In a strange way this reminds me of "Lion King"... Hakuna Matata
The concept of this piece is quite simple and yet it seems to fit in nicely; assuming that Zecora's homeland is reminescent to Africa (like most people undoubtfully believe), this is a very good tribute to the latter, giving of the vibe of African savannah - warm and somewhat plain.
As mentioned - this brought a strange reminder of "Lion King" for me; technically the two are quite different and yet I cannot shake that feeling. This, of course, plays little role in deciding the originality of the piece, which in terms of MLP at least does fairly well - Zecora and her homeland are rarely touched upon in fandom, so it's a nice vision.
The style you used may be simple, but it's also befitting to the endless, empty plains of southern savannah that are either covered with sand or dry grass. The somewhat monotone landscape stretches beyond the horizon and this piece plays a great homeage to that image.
The impact of this pic is the most intriguing thing of the mix - while definately not striking, its beauty gently reveals itself before one's eyes, much like African wild lands. Not everyone can truly appreciate the magic of such simple landscape, you need to breath it in, just like with this piece. The weak glow, which emanates from Zecora, gives out the feeling of pride the zebra feels towards her home, creating an even more majestic image. The plain and simple technique makes up a very consistent whole, with each element being a part of something bigger; another great homeage to savannah's nature.
Overall it's a very good example of how simplicity can still grab you, creating something more, despite the lack of detail. Sometimes it's truly better then flashy images, beaming from the pic and you proved that much.
I love the grass at the bottom of the picture and the way it works perfectly with the rock and the ridge/hill in the background. They're just enough to give a great impression of an arid landscape. The focus on Zecora with what seems to be distortion lines radiating from her is interesting, and while it's a bit tricky for my eyes, it's certainly effective at centering the image on her. The starry night sky works well, and the dust/mist's coloration makes me think it's being lit by a fire. Say, maker, could you attempt to do a somewhat similar Zecora image, but in daytime? Such an arid landscape would work perfectly for that.