She has really only just started flowering with a lot more growth going to happen and this would explain the lack of aroma and trichomes.
The plant looks quite stretched and the pot quite small, possibly indicating inadequate lighting and the yellow leaves are no doubt the result of the soil in the small pot becoming exhausted/depleted.
Next time try a pot around 15 litres/4 gallons for your autos to really thrive.
At this stage you could increase the feeding slightly to help with flower growth, even going to half veg nutrients and half bloom nutrients for a couple of feeds will help the flowers fill out a bit, but now that the leaves have gone yellow, there is no way of returning them to health.
Due to the exhausted soil and the small amount of it, you are basically running a pseudo hydroponic system, whereby your plant is only surviving on whatever nutrients you are supplying and the soil is only supporting the roots as a "substrate" and not as a "living soil" anymore.
Giving a P/K booster with your nutrients will also help the flowers fill out a bit more.
In future, if you want some bigger and denser flowers, upgrading your light might have to be an option worth considering.
Without a diary, it is quite hard to give accurate and specific information, as it is now, only general concepts can be offered.
Hang in there and be patient, your reward lies just over the horizon!
Hope this helps,..........
Organoman.