Actually neither. Both of those are too light. You need a more brown with it. Like a ash blonde or something..
I'd say this wig is perfect:
It's the right length too..All you need to cut is the area where you would pull it back, and in fact, you can cut it AFTER you tie off the ponytail..So that's simple as crap lol
Also, you can use the excess you cut off to make the antennas . If you want help with that just let me know and I can give you a good run down..