Its a pity that not many people paid attention to this wallpaper..
i think this has something stylish that catches my eyes..
i like the way you used textures here and the colors.. the weirdness of this wall is nice..

though i would like to see the original scan to know what you did in here.. if you just remade the scan as it is or if you added some personal taste to it..

aside from that.. the only flaw here is that the outlines are too uniform.. seams you use stroke lines instead of vector shapes.. i know shapes take more time, but the results are way nicer, since you can vary the thickness or the lines...
you should try is someday ^^

good job, keep it up! ;]