Sorry, these our tough to work with unless you do them everyday and understand the code. I had to design a lot of stairs at Silver Bay, because even the degreed architect had problems.I'm not sure where the 45 degrees came from, perhaps it was an interpolation from my 90 degree support bracket for handrails, disregarding is probably best.AS to landings, Each landing (break in stair pattern between stories) must, at a minimum, have the length equal to the width of the stairs. Your draftsman has overlapped the first stair of the second set, reducing its size by 300mmI think this is the only thing left to fix :-)