The number of characters right now is all right. I wouldn't mind seeing the occasional glimpse at another family. Like Tarik and Asha, Duncan and Lars, etc. You could always try to condense the series of same-group characters down to one entry instead of a few, as well, since it might help to write one longer post versus shorter ones, giving you the time to maybe focus on another set. But nonetheless, what you're doing is fine too!