Some pictures of my CJ oxfords in sunlight below.
Now here's the thing, I specifically requested internal machine stitching on my order, since I thought I preferred that look (see the pictures in this post: http://www.styleforum.net/t/142905/pictures-of-nice-gloves/60#post_2548114).
So yeah internal or external... first world problems...
I would keep them and then place another order in a different colour/ shade of brown? and have internal stitching. As for the external stitching I think it looks fine.