It sounds like winter is not quite ready to let go of you yet? Is it normal to get frost still so late in the year by you? It's May?
Your "seedlings" and garden looks amazing! I'm not going to show mine off this year, doesn't look half as good as yours I do now have pea, carrot and cauliflower seedlings, which I'm ridiculously exited about. Next year I will not have a massive shed project and crazy weather hopefully and will have more time. Then I'll try and make a nice looking garden.