Try using layers so there isn't so much white space. Really it's distracting.
Sketch your picture on a bottom layer, line the art on the next layer either using the pen tool on low flow and opacity or the airbrush. THEN color on the next layer, or as many layers as you need so you don't get those white dots showing through. And try going a little darker. Your pictures are just too light. Use the bottom sketch layer to do your bg. And if your having trouble using the mouse take advantage of the bezier, line and circle/square tools.
drawn in 1 hour 43 min
drawn in 45 min
drawn in 7 min
Sketch your picture on a bottom layer, line the art on the next layer either using the pen tool on low flow and opacity or the airbrush. THEN color on the next layer, or as many layers as you need so you don't get those white dots showing through. And try going a little darker. Your pictures are just too light. Use the bottom sketch layer to do your bg. And if your having trouble using the mouse take advantage of the bezier, line and circle/square tools.