Hard to tell from the pix but I'd guess milky. I've noticed in eyeballing tris that the darker the background you use to view them the more accurate a look you get. Spent years pulling off small sugar leaves and putting them upside down on a sheet of notebook paper while viewing with my 30X hand 'scope. Took this dummy a while to figure out that clear tris look milky with a white background. Now I balance the leaf on the back of my left hand and dial in the 'scope with my right. I believe I'm now getting a more accurate read on tri coloration.
Slightly OT -- After a while you may be able to skip the tri-viewing step altogether. With strains I'm familiar with I've noticed a correlation between tri coloration and pistil coloration. I can tell what the tris look like by tracking the pistils and the rate they turn dark. Most of my indicas tris seem to be 1 to 1 1/2 weeks behind the pistils in maturing. Means when the pistils are half orange/brown that the tris are a week or so from being half milky.
Just Make sure that if Possible you have your flash on with the camera lens has close has Possible,For really tarty Photo's i use a DSLR,But only if i'm wanting to use them on a web site.
Not too close that the pictures will blur,You need good focus then use crop on your lap tops Picture edit Program