these are much better than your indoor shots!!! you need to work on your posing....if it looks awkward when you set it up or they seem uncomfortable, dont bother taking the shot, just re -position.
- she's not as big as you seem to have made her out to be, heck, id be happy to be that small! shooting chubby or plus size women is really not as hard as it seems...try higher angles and half hiding them behidn their partner, or a structure..i'm plus size, i know!
- your first shot is quite nice, but it would have benefitted from a shallower dof to throw the background out of focus, then it doesnt compete as much....
#3 he looks awkward and you are too close to them....back away and use your zoom....appears like you were using wide angle up close...a bit distorted looking....same goes for several other shots..you are just too close for comfort
there is one shot where she is leaning back and has a double chin....leaning back is NEVER flattering on anyone..and always be conscience of having them lift their chin
#8 is your best...i llike it..if you can clone more wall to the top and get rid of the trees, it would be better....also try to watch the angle you shoot at when you have strong lines in the photo, so they wont be distorted...if you were square on to the wall you wouldnt have the distortion
-add more contrast to your b& w's
11 is another 'almost really good' shot..he looks good, nice pose, nice gaze in his eyes....but her with a solid colour shirt sleeve would have been better, than your 'blow out' overexposure on her skin wouldnt appear so bad.... darken the picture down, clone out the blow out and it will be a much better shot that they will like.
keep working on the exposure....that really is your key starting point...and natural light is working much better for you