int patternSeperationX = 90;
int patternSeperationY = 90;
void setup(){
size(450,450);

for(int i = 0; i < width/patternSeperationX; i++){
for(int j = 0; j < height/patternSeperationY; j++){
pushMatrix();
translate(i*patternSeperationX, j*patternSeperationY);
yourFunction();
popMatrix();
}
}

}
void draw()
{

}
void yourFunction(){
strokeWeight(1);
fill(14,89,149,50);
ellipse(450,450,900,900);
fill(37,137,43,30);
ellipse(0,0,250,250);
}

-this was another take on the concept below, this time incoperating the pacific island flower shape. the green and blue mixes well together and the slow fading effect also suits this design nicely. could be to busy? perhaps less flower pattern, maybe more transparent?