What you got is Kaiyodo/Xebec's second eva-02 figure. Kaiyodo previously released eva-00 thru eva-04 for the first wave, and were re-released in some fancy "tube" packaging. Aside from your eva-02, Kaiyodo also put out another figure from the movie, the eva-05. I don't know if Kaiyodo will release anymore figures from the movie though.
The previous releases are easy enough to find, but they can be quite fragile. I think only Sega and Kaiyodo/Xebec put out full blown figures of evas, but you can definitely tell them apart (Sega's evas are standing up straight and aren't as dynamic looking). If ever you want to go all out, you could always plunk down the cash for the Bandai chogokins.