I loved this, great beginning. I hope that somehow they work in the fact that Looter's powers also come from outer space. And I loved the new Anti-Venom look.
I wonder, though, if the reason why only Flash was transformed while the symbiote survived might have been due to the symbiote trying to reproduce. This isn't stated explicitly, but it might explain why both Flash and Eddie had alien mouths. We've seen symbiotes reproduce before instantly while under stress before. Also, I wouldn't be surprised if Maniac's ability to control the symbiotes that he spews out is similar to what Carnage did in Carnage USA.