2) Why on earth does a game like this need to modify SD Card storage? Be VERY cautious of the requirements your app needs. Remember, your user is going to wonder right away why a simple puzzle game that hasn't been downloaded very much wants to access their SD Card.
If it's to grab pictures from your phone - have a screenshot that says "Use photos in this game right from your SD Card". That explains the permission, and shows a feature all in one.
3) You have a big icon that looks like a cat cut into puzzle pieces that is awesome, but for the smart cat app, you have a creepy looking distorted cat that makes your app look like app-spam. I wouldn't even look at the details of the app after seeing that icon normally.
4) The smart cat game is a derivative of a game that's been around for a long time. It is a really fun game by its nature, so are you coming up in the right searches?
5) I have learned from experience that a key to getting found is coming up in searches people actually use.
6) Do the Titles of your games say enough about what they are?
7) Are you writing long descriptions for your apps so they come up in a ton of different searches? You get 4000 characters now, you can really go to town.
8) Do your games give a really nice "how-to" tutorial before the first time the user plays so there's no question about what they have to do?
It's not just about updating. It's about improving.