Depending on the difficoulty, how big are sprites.. what type of design are you going after? Try to clarify a bit more perhaps. I know theres people who make spritesheets 150$ for 8 directions isometric walking etc. 

Thanks for the reply.

Actually sprites are sized for 32x32 but we can make more than 32px in height if needed. I think smaller is harder, right ?

For one animation we want to use 4 sprites (3+1 copy), we have 5x3x4 (5, for 8 directions, 4 is walk, stand, attack, jump) different kind of animation basically, so 60 sprites for a "body". At begining 4 models will be enought ~> 240 sprites.

We have made a system where 4 different items are showed on the owner, so we need again 60 sprites for armor, helmet (or head), legs and arms. Colors are changed by shader (or color filter) so we need about 1 model of each at begining. => 240 sprites.

Moreover we need 20 differents tiles, 10 cliffs, 3 tree, 10 rocks, 5 weapons (there are animated by deformation) to start a basic presentations of games mechanism.

So we need something like 500 sprites in 32px x 32px.

ps : of course we provide a detailed documentations about all sprites needed to the artist.

Edited by Half - 31 October 2011 at 12:46am