Awesome!
A nice job well done on this parody. Looking for a sequel although I'm not sure if there is a PvZ sequel.
Overall, nice graphics, music and storytelling. You got my 10s.
But here's what I'm thinking for you to plan for your sequel, if you're going to make it. Some of them suit well for the girls.
1. The character, not just a boy, how about a girl too? Each gender will have their own strengths and weaknesses.
2. The dollhouse, it's more of a girl's toy. The boy should use some sort of a Portal-related device that will replace the dollhouse.
3. Unicorn from My Little Pony, a girl version of the Hungry Dino. Vulnerable when charging the horn's power.
4. Blossom from Powerpuff Girls, girl version of the Slimy Frog.
5. Change the visual of the Witch to a real ugly witch, this one looks more like a wizard.
6. Challenge modes just like in PvZ did?
7. Achievement menu so you can see your own achievements when you're hosting the game in other game sites like Kongregate or ArmorGames.
That's all for now, will be looking for more great games from you! ;)