Congrats on your first ROM. I flashed it and everything is fine except a few things.
1. Notification pulldown: I like the idea of transparent pulldown but only really works with black wallpaper. It's hard to read with other wallpapers.
2. Font and battery decreasing 5% as mentioned by others. I think Roboto font would be nice. I don't think anybody would complain with that font set as default.
3. MIUI Camera doesn't have front facing camera (unless I can't find it for some reason)