The Camarilla Edition mod is not compatible with any of the other bigger mods out there, and it already contains its own version of the Unofficial Patch. You should definitely not install another version of the UP on top of it, that will break Camarilla Edition. Retextures should be fine, I don't know "SilentMasqu" and "Devolved ENB" though. If these make gameplay changes, they will likely conflict with Camarilla Edition.

My recommendation is to make a clean installation of the game (uninstall it completely, delete your save games - you cannot use them anymore anyway, they are incompatible with other mods - or archive them, and reinstall the game) and only then install Camarilla Edition. Check if the mod is properly installed before installing any of the other retextures.

It is also normal that retextures have file names that are not available in the normal folder structure of the game; it's a technical reason (IIRC the game loads textures present in folders first, if there are none, it goes for the packaged ones which are not unpacked normally unless you do it manually, which is very unusual if you are not creating a mod/retexture), but as long as you copy them into the correct folders, they should work.