I'm a Canon person. I wanted to flag you but I upvoted accidentally by habit.

To be honest, I got my first Canon DSRL (years ago) cos it could shoot better video, but the debate about which brand can shoot better photos is still on, and probably Nikon is better at that, so if you're mostly interested in photos then you chose wisely. Also, the kit looks like a sweet deal, I thought from the pic that you purchased all those items separately and the price was just for the camera!

So enjoy your purchase, start posting some of your pics here, and don't fat-shame your cat, he/she looks perfectly fine to me!