Regarding the trouser length, I think Shevia has the right idea: swap out the shoes or hose so it's all black with no skin showing, which is breaking up the line.
But, I would not bother to hem these or to obsess too much over PPL right now, not if you are still losing weight. Because weight fluctuations can and do effect the length of your pants! A few more pounds, you may be wearing those trousers with heels not flats. This is one thing that drives me batty about PPL... and is why skinnies and straight legs are so much easier to wear: they don't require precise PPL.
I was thinking about your cape some more last night. Capes are something I never bother to try on, because they come "one size fits all" and at 5' it's like I am consumed by a queen sized bedspread (exaggerating). Then I realized last night, it's probably quite easy to alter a cape down to size! It's just two seams along the shoulder, and shortening the hem (if necessary). Sooo... that is an option to consider as you shrink, should you want to keep the cape. Then again, you have such a lovely body hiding under there... maybe you need a coat that is much more fitted to show it off?