There are few things you can do to improve the smell and terpene profile, but really 90% of it is in the genetics. You're doing everything correctly, and the findal bud smell will be loud even if the growing smell is not there yet. What you can do is adding PK and molasses these nutrients and micro nutrients are used to make terpenes by the plant so adding them will improve the smell (and taste!) . Second you can sort of "flick" the stem a bit or shake/move the plant with your fingers and see if that kind of manipulation makes the plant release any smell or not. Sometimes it does and it's a nice surprise. Most of all you should just be patient, i can garantee you that during the chop you'll get what you're looking for, because the grow is going great. Hope this helps ! 🚀