I feel like the webslinging might not warrant the actual Wings ability, given it's limitation requiring lots of tall structures nearby (Homecoming does a great job of highlighting this several times). You are already buying the SpiderWalk, which essentially just opens all his supernatural speed and movement/agility to 3 dimensions. Buying wings on top of that seems like double-dipping for no added benefit, even if it's intend to portray the armpit-web squirrel-suit gliding he can do occasionally.
I could go either way on Breath Weapon (or Natural Weaponry) for the webs. Incite Effect feels a bit more appropriate, since he mostly blocks and maneuvers with them, but given that he can end fights by webbing people up he should probably be able to make "attacks" with his webs.
But if we're going with the classic webs-as-gadgets Spider-Man, with web shooters as an IoP, then Breath Weapon is inappropriate. Items of power should never give Breath Weapon.
The main narrative point of the Web fluid was always as a limitation, something he runs out of randomly and has to go and re-
brew. Would it be possible (or advisable) to instead do webs as Brewed Potions? On their own they can act as web grenades (common enough if wasteful use) or they can be plugged into the web-shooters (still an IoP?) to allow for the other various uses (ropes, nets, etc) with some kind of Rate of Use so there's a chance of running out at critical moments.
The Catch rating for poison depends on how known/knowable it is. Could be anywhere from +2 to +4; maybe it's on his Wikipedia page, maybe it's totally unknown even to Spider-Man himself.
So +2 if it's say a normal/known spider venom where a hospital might stock anti-venom, vs a +4 being a super exotic toxin that would need samples and study and whatnot to synthesize something custom?
Not sure what's with the pitcher stunt. Far as I can tell, Spider-Man doesn't throw stuff much.
He webs things and whips them around into people a ton, would it apply there or does that become a weapon?