Character Design and concept art for any kind of game includes a brief study of art style, user experience, the story behind the game, how will the animation and the point of view be in the game, colors, shape, etc.
I'll give my best so the concepts match your game's goal.
Basic 5$ Gig only includes a brief concept and brainstorming, but you must select an Extra in order for me to deliver any drawing files.
CONCEPT ART Includes main sketches regarding art style, color selection, body shape. Is like a brief with details on what the game art and layout has to have in order to follow the same system and visual message.
CHARACTER DESIGN Includes all the necessary views of the character/s. Clothes, color, weapon, stand still pose, etc.
ANIMATION Depending on the animation you'll use (frame to frame or body parts in different layers) is the main file i'll deliver.