Hi,
Welcome to world of portraitures! To understand portrait lightings you gonna spend time researching on the classical lightings, high key & low key lighting and positioning of main light & fill-in lights!
http://www.thedphoto.com/photograph...ting-part-6-classic-portrait-lighting-styles/
http://www.portraitlighting.net/patternsb.htm
While I think you have some basic knowledge, you lack practices - but fear not! I got not enough widthband to look at your other link, so I will comment my 2 cents over here! When shooting a human subject, be sure what mood are you trying to create and style of lighting. Without these 2 criteria, it is just using lights to fill in the portrait! Here is what you can improve:
- A successful portrait is determined by lights (distances - far or close), subject (posture & positioning) and camera (viewpoint - high, levelled or low) to create different ambience.
- Your model's specs are like cutting across her eyes, it's no no. You should shoot your model at her level and not on top of her as perspective causes her specs to cut her eyes. Shoot at model's eye level, unless she is not wearing any specs or you trying to shoot from different view point.
- Agreed on DK's comments, you might wanna ask your model to take off specs - reflections might cause white glare on subject's specs. If she doesn't want take off, place your main light opposite of your fill-in light or reflector panel. But your model's specs no reflective glare so you safe on that.
- Like I said earlier, positioning of your main light and fill-in lights. While main light successfully light up model but her arms are not. You need a second light or reflector to fill-in those dark areas or lighten then up. With at least 2 to 3 reflector panels or huge polyform board, you are able to fill-in enough dark areas. Best is using panel mirrors, very good reflectors! Your model's hair is too dark, fill-in more reflectors. Like lighting setup, reflectors can also be moved to create different degrees of lightening dark areas.
- Beware of hot spots! Which are concentrated light spots on forehead, cheeks, chin and nose when face are oily. Try to ask model wipe clean or make up. You might also wanna place your lights further away to solve this issue.
- Your model is like siting uncomfortable and hands posture as well as sitting posture, are wrong. Can read on postures of models or read on 'S' posturing of models. Also can air some smoothening music to relax the ambience.
- Hair lights aka 'Kicker lights' some ppl called it, is to separate background from subject's hair. In your case, the head light is over shot. There is no wrong with filling in from behind, but your head light is like casting glares on your picture too awkwardly! Unless you using a background light to light up background, else try not to cast this kind of reflections anymore.
- 'Catch light', not our mod 'catchlights' (haha), is present which is good, creates lively subjects.
I hope I not sound too harsh. I hope you could learn maybe not all since first try but something new which would enrich you and your subject
Lastly before I end my 2 cents, I believe with enough reading (still got more terms and tricks) & practices, you progresses
Don't know anything, just sound out.
Cheers