Those are nice. I'll be honest, I likely won't use them, but I know some who will so I'll share the link around to the sites I frequent. I usually have wallpapers of Grim Reapers and Skeletons/demons coming out of the grave or movie cast wallpapers.
The only thing I would change would be making a secondary wallpaper for C++ that promotes other IDEs as I don't use Visual Studio for C++, rather I use Code::Blocks IDE with MinGW compiler in Windows 10.