This is a really broad question, so here is the best advise I can offer:
Snow= Incomplete dominant
Enigma= Dominant
Variations in pattern/color= Polygenic or line bred traits
Everything else= Recessive
... As far as I know.
Here is another good place to learn about morphs-http://www.leopardgeckowiki.com/index.php?title=Category:Morphs
Hope this helps you!