Very interesting Wood Elf list! Very non-standard, which I absolutely love. I'm not sure if they're the best army to use as an example though
Seriously though, make sure the armies playstyle is something you can get behind; if you don't like hordes upon hordes, don't play skaven. As Dave said, core are important. If you hate an armies core, take another army! It would probably be a good idea to watch a fully painted battle report to see how you like the look of the army, and then read through various articles (1d4chan comes to mind) about them to see if you like the playstyle. Be prepared for movement to matter a lot more than shooting (as opposed to 40k).
Thanks for the guide mate!