Hey brother, first day too, quick question what kind of CBD: THC ratios you like?..and as far as the smaller plants, they're different genetics and even within the same cultivar the growths will be different, with your occasional runts here and there. Your plants look nice and happy though, and the smaller ones might prefer a bit more time to dry off compared to the bigger ones.
And yeah,treat the outside like the plague,if you're strictly indoors. always a good idea to quickly change clothes when your coming home from a long day outside,especially if you have an outdoor garden or live in wooded areas. Better to be safe and proactive, than battling mites or other pests.