I'll post the latest ones I have for my Surface Pro 4 and Surface Pro 2 (both sporting the glossy). The last time I got the matte was for my Surface RT or Surface 2 (forgot which one).
As for feel, it's kind of in-between the feel of vinyl (like with stickers) and stationary paper if that makes sense. You won't feel the texture of the VaporMg.
I do have old pictures posted previously. These are matte and from my Surface RT:
This is glossy from my Surface Pro 2 (i5/8GB/512GB):
This is glossy from my other Surface Pro 2 (i5/8GB/256GB):
It's hard to take pictures. The glossy ones were taken at night. It's hard to tell but to get colors to pop, you need the glossy. You'll notice (hopefully) the color is more intense with glossy.
I haven't posted the ones for the Surface Pro 4 yet. Also, the skin not only is for the back, but also for the front and for the side edges.