What you are planning is more like "beautification-expensive-gimmick". But right, why suddenly a shed roof is called for, I have not yet read the real reason from the OP.
The impulse came from me and is not an expensive beautification gimmick. The OP found a classic gable roof too boring, I thought a hipped roof was an expensive gimmick. Then I noticed an asymmetrical ridge line in the floor plan, on which you could perfectly place the broken ridge of a two-part gable roof aka "offset shed roof": simple roof structure, snappier than a classic gable, two birds with one stone. And as a third and fourth bird: one side attic (so no storage room overkill) and the other side skylight through the ridge end. Appearance gimmick, price-wise economy - a brilliant coup.