You're a pretty good artist. My favorite pictures were the PikaNoob logos, since I am a fan of personal logos myself, as is evidenced by my avatars for various sites. If you're interested, you can see my logo, Caption Contest (Including the next one!), and misc. pictures here. Also, if you notice in my album, I made a beta version of what could be your colorized "PikaNoob" logo. Tell me what you think.
Just got your Hayley Mii, and I know what's wrong with it, after putting it next to the official one.
Eyes need to be a notch lower, a notch farther apart, and 1-3 notches smaller. Head shape should be the one that looks like a pentagon with the point at the bottom and an otherwise square-ish face. Since I can't alter it personally, I can't tell if my numbers are exact, so you'll need to stick them next to each other and punch "look this way" in ranch.
Also, she's a tiny bit too tall. Otherwise, it's great.