There are 3 basic styles:
1) Corner pantry (wood wraped or drywall)
2) Closet (shallow, extended or L-shaped)
3) Cabinet (size, roll out trays, or a chef's pantry)
Choose melamine (white painted) or wood shelves and whether to add countertop.
Choose your door (same as rest of the house, rain glass etc.).
Do you want crown molding?