Hi ,

I was told to ask questions here about creating nature graphics.
I am using Gimp and want to make water. I need it for a comouter game and I will be looking down on it from above. Currently I tried to use gimp

start with blank picture, bigger than the tile you would like

Filter > Render > Lava; choose gradient Blue-green
rotate the picture, so that water appears to be horizontal
crop the picture, so that you get a rectangle
Filter > Map > Make seamless
test it with Filter > Map > Tile... to a size at least 3-4x greater than your tile on each side

save the small picture, this is your tille.

Doesnt look good for a computer game!