Here is a commission for Phealgud. I included the finished picture, line work and the initial sketch.
In any case, I want to mention line work. I find lining a really slow process, especially digitally. It's very difficult not to lose some essence of what the sketch is as well. There are some tricks to it - For example, you want to use a heavier line towards the bottom of your picture as it adds a sense of weight and grounding. And these guys have a lot of weight to sense.
Wave's lines are actually slightly thicker than Jet's, since she's fatter. it's an insignificant detail I doubt anyone would notice.