HMOWKYMOH (yes, I'm abbreviating it because that is a mouthful [handful?] to type repeatedly) is described as a "soft white polish full of blue shimmer and holo sparkle." It is also described as being sheer, and I would say this is a spot-on description all the way around. The formula is good, though-- a touch on the thick side but easy to apply. And it is indeed sheer, but builds up nicely. I used three coats and while it isn't completely opaque, has a nice delicate look to it without being too thick. Personally, I think this polish benefits from not being 100% opaque and so I don't mind that there is some visible nail line. You could layer this over a light color if you wanted it to be opaque.
This polish is so gorgeous; I fell completely in love with it. It has a very ethereal feel to it, just like Princess Leia's hologram in the movie (and also a bit translucent). It's soft and delicate and looked very elegant and ladylike. I felt like a hand model while I was wearing it, hah! I think this is one of my favorite polishes so far!