I'm not entirely certain I'm your person to offer technique feedback, so let me share my though on the visual aspect.
I like the backroad lighting in pic #1 better than pic #2 - not a real fan of the black background surrounding his upper body.
I'm sorted of ok with the lighting directions on pic #1, but do not like the "hot spots" on her forehead and left cheek. In my opinion you could lighten her eyes in port processing a little bit as well, and possible soften her skin or reduce the sharpness a tad.
The emotion in #2 is great, maybe add a little back lighting to separate his head/hair from the background.
For sure I'm not an expert, just offering my .02.
Mark Riker
@revcophotography