Yesterday was overcast and rather dull. Lighting is everything, and mainly the 'secret ingredient' in the way pro work stands apart from amateur efforts. If you had watched some of the pro photogs a Chelsea you would have noticed that most were using fill flash or even handheld off camera flash, albeit at low level. This gives their shots a visual 'pick-up' by slightly increasing contrast and adding a little sparkle. However good you are, or get, at post processing it's still quicker and more profitable to get the shot right in camera,...and only a 'photoshop' master can add what was not there!
If you have to use fairly extreme wide-angle you need to always be thinking about distortion and make it as inconspicuous as possible,...thus, the interior with 'deformed' lady,...you should have asked her nicely if she would 'pose' while you took the shot. The human form always look much worse when distorted than the structure. If you had placed her nearer to the centre of the shot she could have become a natural focus point and further distracted the eye from the unavoidable structural distortion. That way she would have adopted a more suitable and wide-angle friendly stance (all women know instantly how to do this when you ask the right way!) and her legs would not have poked into the corner of the frame to look about a bad as they could have done!! Additionally, with wide-angle you need to be very mindful of where you place eye-line, or horizon since this greatly effects the distortion for good or bad. Notice that your first shot is the most pleasing perspective and camera was at head height,...the interior with vaulted circular roof has exaggerated the lens distortion (also a little fill in flash popped at the ceiling would have lifted the whole shot and the distortion would not have looked so bad..... ) Using wide-angle is hard to do quickly and instinctively because small details get distorted and only become apparent when you are about to pass yor work to the client!