I don't like copying, I don't even want to try colouring styles from others (maybe that's why my colouring is terrible! xD) I'd say more like inspiration or use reference, which is different from copying.
The only thing you could say I copy is for example, I don't know how to draw certain image of a hand so I use my own hand to draw it, and that helped me to improve a little, yeah a little xD But I think one way to other we all look to other artist on how they do things so we try aswell, again, not copying, more like inspiration.
My style at first looked like Pokemon but then it was mixture son of Cthulhu with a wannabe shoujo with softness shades trying to make something 2D into 3D in HD (?) but it helped to create my own style.