About PVP gear.
Basically you will want to start breaking down the gear you get from your chests that you purchase that you dont need with salvage kits. This will give you some of the components you need to make your armor (arcane powders,orbs,slivers, crystals etc).
Much like PVE gear the lower your level (rank) means less exotic looking gear.
Work on fine tuning your build and playing your profession and as you gain higher ranks comes different looking armor( more desirable cosmetic gear?).
Beyond buying chests from your rank vendor you can also salvage Free and Paid tournament tokens from chests you receive by participating in tournaments.
The following link provides a somewhat complete list of recipes for the various gear.
Take a look in the PVP locker to see what it looks like on your toon.
http://www.guildwars2guru.com/topic/55030-pvp-mystic-forge-recipes/
Hope this helps.
u must rank up to get better skins.