I found a solid picture (shown bellow) from which I want to make a logo. As you can see, image is divided in to several parts and I want to make it reveal from "head" to "tail". I've tried looking for some tutorials, templates and effects, but I was not successful. Any help will be welcomed!
You'll have to animate a mask for that. A simple rotary wipe won't cut it.
As Dave hinted at already - nothing magical about it. You have to separate the individual segments first if you realyl want that kind of reveal. Whether you do it in AE with masks and lots of duplicate layers or spend some quality time in Photoshop and then import the separated layers doesn't realyl matter. It's gonna take some time one way or the other.