Welcome to Subeta!

The way to 'layer' the order of items on your avatar is by dragging and dropping the order the items are listed in the items worn list. Items at the top of the list display on the top of the avatar.

When you see an item on site, you can hover over it for information. Samples below:

When you hover over wearables, there will be a preview for what it looks like on an avatar.

I think had covered the other options/answers, but do ask if anything is unclear of if you have other questions c:

Useful Links:

What to do on Subeta? Useful general information for newbies Finding friends (Chit Chat) SubetaLodge (Offsite item database, pet colours etc.)
FAQ