Doesn't look bad. Are your shoulders really that square, or is there heavy padding? See how little padding he's comfortable using. You want your shoulders to appear an inch or so wider than your hips, no more than that. Moderate waist suppression. The lapel width suits you but the huge notch is very '70s, see if you can narrow it up a bit. Most importantly, open up the skirt a little bit. No, a lot. The straight-down front quarters call attention to your hips; an inverted V will do a lot to slim down the look. I would start the flare just above the bottom button. Lower the pockets?
I know you asked about the construction, but it's nearly impossible to tell from the pics. How's the fabric feel? The wrinkles at your side make it look like it's fairly soft construction and canvassing.
Hope that helps-