im not a art person but...
that not bad but not good either..
but i really like the first and second set

How do I purchase the 1st set in the left most picture?

do you have texture item?
if you have it then you send the tc to xoxxo, after that xoxxo will send you the template

if i will buy one of those sets, can i wear it immediately or do i still need textures before i can wear it?

if u buy 1 set ,send tc , i send textures , if u don't have bought the texture item yet , only u can see ur textures :S

you must buy texture item first
http://forum.toribash.com/tori_shop.php?cid=4

I did. I wasted alot of tc's.

...so ardgevald , u bidded 1k for first set , right ?
... damn i want 18k for head textures :C

they are good, try adding diff shaders to pics, and post a spinny of each head so people can see the seam at the back (if there is one)