Love the new Poppy but 1 suggestion.
Could you make her E affect multiple enemies? It doesn't have to be a skill shot, you can keep it a targeted ability, just have poppy push everything along her way and stun them if they hit a wall.
All her other abilities can affect multiple targets but whenever you E you can only ever affect 1 enemy, sometimes you even miss-click and push a minion instead. The thing is you can't really save your teammates if you can only take out 1 person on the enemy team, taking out 1 is nice if its a 1v1 or 3v3 but more then 3 enemies and you become sort of useless. She doesn't have the damage to be relevant and her ult either takes them out of the fight or just buys you time but does not allow the enemy to be killed during it.