Players can choose which nation they come from and then customize their avatar in on many ways. Each character can be customized in 15 slots:

Nationality:
Choose between British, Spanish, French or Pirate. Ar!

Gender:
Boobies or no boobies… that is the question.

Career:
You can choose between being a Naval Officer, Freetrader, Privateer, or Pirate. Should you choose to be a pirate, you cannot align yourself with any Nation or choose any other career. That be because no one wants ye, ye scurvy scum!

Appearance:
Change your avatar’s appearance to suit your swashbuckling personality. Detailed image creation includes Face, Hair, Facial Hair, Eyes, Hat, Neck, Coat, Vest, Shirt, Gloves, Waist, Pants, Boot Trim, and Boots. Don’t say you didn’t get any choices.
Some elements of character appearance can change during gameplay. More intricate clothing is available as you gain level and coveted items (such as peg legs and hooks) must be earned by completing missions.

Screenshots of Character Creation