You don't need to post this twice. Since it's a trailer, you only needed to submit it once as a trailer.

Well, it's certainly better than I expected. And while it could use some improvement, I see a lot of potential.
From what can be seen, the animation starts out choppy, but gets a lot better in the later clips.
(The later Venom clips were great!)

The sets seem somewhat basic, but still good. The effects were well executed, but a bit over done in certain shots. Unless an effect is necessary, I suggest leaving it out to avoid over-saturation. And for being a Spider-Man series, the teaser sure showed an awful lot of Deadpool.

May I ask how completed this project is? And how many (And how long) each installment is?
This could shape up to be a pretty nice series.

If you wish to cast some voice actors, and good idea is to go to the "Audio" forum, and create a casting-call.
I may be able to help, and will PM you with the details.