Well.. the one on the left was just a test drive on Paint Tool Sai. I don't really have a solid picture in my head on what am I really trying to draw because it's my first time using the program. I'm just testing out what the tools in Sai can do and what makes it different from Photoshop.
Well, it's true that my recent art style is very different from my previous artworks. That's because I like to try different styles and mix them all together and see what happens and ask myself if it's better than the previous one or not.