@Treefox: Thank you! It took me about 20 minutes to get the nose right, but as soon as I colored it, everything came together good. And I might color Tyleet, just make her eyes a bit softer, I think that's the only problem I see...
@Startear: I use different thickness pencils, you can get them at any art store or even a Staples or maybe any sort of office outlet store. The one's I use are STAEDTLER design pencils, to get the lightest strokes I use the 3H, its the thinnest pencil. It makes deeper creases if you press too hard but if you sketch quickly and not exactly "put your hand down in one place" you should be fine. Be light and quick with your sketch. It takes a while to get used to but you'll get the hang of it. I usually go back over to have final lines with felt pens when I'm done or I just erase some lines and put others darker, maybe add some shading but I've only done that a few times.