Calendar design in photoshop

I would like 2 calenders designed in photoshop. Each calender will consist of 12 months and a front cover. A blank layer should be left to insert a photograph. We will use the templates to create photocalendars. One design should be made at A4 size (210mm x 297mm) and the second design should be 120mm x 380mm (Portarit). I have attached sample images.