So here's W7 Metallic Neptune. In my swatches you see Neptune on all but my ringfinger nail. That one has Model's Own Emerald Black. I don't remember how many coats I did. At least two, at most three plus topcoat.
At first glance, there's barely any difference between these two polishes. But for polish enthusiasts there's a huge difference ;) Neptune is a really blackened teal, while Black Emerald is a blackened green, just as the name suggests. I prefer the Model's Own out of these two. The green looks more interesting than the teal and seems to glow from within, while Neptune is pretty, but it's lacking that special something. Both are supposed to be duochromes, but I don't see it in either. Maybe it's just too subtle for my understanding of duochrome.
Even though I prefer Emerald Black colorwise, I prefer the W7 formula. I just can't stand the smell of Model's Own polishes. The only brand that stinks even worse is Kleancolor... So in the end, for me, I'd give them the same rating. I'll keep both. :)
Thanks for reading!