Marionette Girl

It looks really good! My only tip really is about layers. If you want the lineart to be always visiable, make sure it is the top layer. I do that all the time- where I'm coloring away and my lineart disappears-I'm either on the lineart layer while I color or I forgot to shift it to the top. If you have a tablet, great! If not, I recommend getting a tablet if you are going to continue digital work, not because it "works better" but because it's just easier than a mouse (and soooo much easier when you get used to it). I used a program called GIMP for a while. I'm now using Manga Studio, but I recomend SAI. SAI is only about ten dollars more then Manga Studio, but it's easier to use and gives beautiful results. GIMP is free, but it is a large file that can test your ability to wait.