I absolutely loved it and can't wait to see more! If I had to give critiques it would be:
1- Make the customization screen easier to navigate and choose colors/styles
2-Toggle the option to block out the choices and status screen after expansions. (Personally I liked the detail of getting too big to see the options but I know some people won't)
I'd love to see some traditional weight gain and muscle growth in future installments. Getting to grow bigger in ways that increase stats but make you heavier could be fun.
Keep it up! I'm definitely looking forward to more.