Great looking figures.
I would recommend Forged in Battle too, I've got a bunch of their 8th Army figures (with some PP and some Battlefront) and I really like the FiB sculpts.
I think 15mm is a great choice for CoC too (I'm very much a 10mm gamer, but 10mm is a bit small for a CoC sized game) but 15mm gives a nice balance between figure scale, ground scale, vehicle size, building size, and simply being able to see which figures are which!!