For a bit of critique from me I would like to give you some feedback on your people shots as I’m not much of a landscape guy. The landscapes look nice though but some of the sunstars are a little large and distracting. You will probably find that the hyperfocal distance at slightly larger apertures is good enough. For a calculator that is neat http://www.cambridgeincolour.com/tutorials/dof-calculator.htm . Your camera has a 1.5x crop.
Goofball: underface lighting is rarely flattering
Cool dude: As a rule of thumb don’t shoot kids from above and don’t chop half of feet off on anyone.
More coffee: fun concept but your shopping skills are lacking. The outline against the wall looks off.
Concretesky, DSC_0497 and shades: whatever you were trying to achieve has failed. The texture is pretty awful and the pose isn’t flattering as it looks like her is pulling his lip up and away from the camera. The soft focus style worked in the 80’s but not anymore. The light is pretty nice but because he is wearing sunglasses I think he should have rotated 30 degrees counter clock wise to get less light on the temple highlighting the vein and more on his hair to give it a little glow. The portrait of the woman is the best of these three, I think it would look great without the editing. She has a nice expression, there is enough shadow in her face to give her three dimensions however I think a little dodging of her forehead would be nice.
The low key portraits: Nice experiments but in general not enough of the face is lit for it to really work.
Suegro: very nice portrait but it is badly tilted. The colour balance looks a little off.
Suegra: A decent portrait but definitely not as good as the one before. In general with women you very rarely want to shoot them straight on. What defines the female form are curves and very few women are curvy enough for this to work straight on. Because of how her head is held she now has a very marked double chin. As a rule of thumb and starting pose you want women turned slightly away from the camera, leaning slightly forward with their torso and facing slightly away from the camera. This will enhance the shape but also minimise double chins. Just be careful so you don’t give them a hanging gut. A tighter crop would be nice on this shot, pull the left upper corner down until the top is almost touching her hair.
The portraits of the curly haired woman: All nice but slight framing problems. By paying more attention to the negative space you could have enhanced these a fair bit I think. All nicely lit but they appear slightly soft.
Kiddie with dummy: Both nice shots, maybe a bit too tight though.
Dark light series: Not bad, better than the other low key. Don’t do soft focus hazy shots with low key. It generally works better with sharper shots as the contrast is already very harsh. Again, bear in mind under face light isn’t flattering.
Wife: Why is there so much space above her head but you’ve chopped her legs off?
Other wife: Soft, a bit too Monte Zucker for me.
You’re doing well but it sounds like your camera body is holding you back somewhat and I suspect a light stand with a softbox or umbrella would be very handy for you to keep learning about off camera lighting.