You have “Din Rail Terminal Blocks”. Search that and you’ll find all sorts of designs and colors. The ones in your image appear to be snap ons.
When purchasing assure that they are rated for the load you plan to apply.
You have a mostly clean install.
Only critique is the large red wire (supplying power to the terminal block) is installed with too tight of a radius. The wire should be secured in a straight line as it connects to terminal block. This one is putting strain on the wire to lug crimp. It will lead to eventual failure.