say, i don't think I'm qualified to write tutorials or anything yet, but if you guys want to learn then you can always bother us in this forum.
i'd say for a starter, you should mess around with a few things:
-Selection Tools. < tool bar on the left side, there are quiet a few of em to mess around with.
-Layer Style (on the layer bar on the left side, right click on a layer and hmmm start with Blend Setting, Glows and stuffs.
-Layers. > this is what i still do. i create a separate layer for everything. for example your sig, Dark. Tobi, Grass, Background, the paints on the left side, a few brushes on the right and middle. All of em should be on separate layers. so you can arrange, fix, improve each of em easier. if the Brushes doesn't clash with each other, and staying at a safe distance like some of yours, Rawrsor, then sure, go ahead and leave em on a single layer.
-Depends on what you like, and i think you know some of these stuffs already. Deviant art is a really good place to get new, better brushes for your sigs. http://browse.deviantart.com/resources/a...s/?order=9
-Last but not least, when you resize things. Hold down ALT+SHIFT to make sure you don't distort the thing itself.

:P if there are any more questions, feel free to pop em.

that should be enough to make some really nice pieces.

this was my first piece, ever. all i needed was a Hexagon Brush and Magic Wand. :D