I actually think the smiling face looks better. If you look at Mirage in the cartoon, he fairly prominent angle lines running down his face from his eyes. Without them, the face looks to round. Also the helmet is a little round. It needs to flare out _just a little bit_ more at the bottom.
Oh and the fact they have "ell" instead of "elf" bugs me no end.
Of course I'm nitpicking. But given I expect this to be on Takara's radar in the next 2 years and I think TT will do a better job, this would need to be pretty close to perfect for me to buy it. Or include a toy accurate head. Then I'd probably be in.