I haven't read the other comments and expect I'm probably going to be the outlier here, because I think that as lovely as the pants pattern is, the fit in the rear is a deal-breaker for me if it's not something that could be addressed through alteration. *sigh* This is partly why pants-shopping gets me down. The fit can be just perfect from the front, and then from the back it's too tight or too baggy.
To me, the brown pair that you recently altered is MUCH more flattering to your beautiful frame than the pair featured on this post. Take this with a grain of salt, though, because I really prefer more fitted bottoms even when they are on the slouchy side - I can't wrap my brain around the baggy-crotch BF jeans, but I like seeing them on others when the fit is just a touch relaxed.
I'd like to see a smaller version of the sweater, and see them worn with a slimmer-fitting bottom, before making judgment on which size I'd personally prefer. I'll bet that the purple color will look absolutely amazing on you! The teal is lovely too, but I personally think it's too large to wear with a slouchy-fitting item like these trousers.