Handiman replace door hange shelves

Replace and paint external door. Install lock on internal office door. Rearrange garage shelves. Hang several pictures and small shelves. Added pictures in response to question. More detail below: - I've hung the pictures mysefl - no longer required. - shelves x 5 per pictures to be hung on gyprock wall (very straightforward) - replace damaged door. Per pictures, this is an external door for access to garage. Rotted over time. - Garage shelves. Need the lower one raising to the same height as the higher one.