Marks & Spencer curry kits & curry paste

Last month when browsing for a birthday cake in M&S I found these. There were a few standard curry kits . And a vast array of spice pastes in jars. I really love the retro packaging theme they've got going. But I still feel Spice Almighty's packaging is far more visually captivating and emotive.

The recipes seem easy to follow but I'm not sure about the depth of flavour that could be achieved from the pastes.