yes it did take a pretty long time.. for example on the desertmod.. my first release the sand color was so ugly.. almost greenish.. i remember the bad replies i got on that one.. after then when i improved the colors the replies were alot better ... you need to find the right tints of colors in photoshop.. so that everything in the game itself just "matches" and blend together realisticly .. all colors needs to look right.. and thats pretty hard sometimes.. also finding the right textures is hard..