All 3 options are the same image, just zoomed in to different locations. Click an image to choose a location to zoom to. They are in order of increasing magnification from left to right. Press the green flag to reset. If you find any interesting areas please put up a remix with them :)
All the fractals are computed live so it may take a long time to draw. Generally, the more black on the screen the longer it will take Changing the variables "centre 1" and "centre i" will change the location and the variable Value/Pixel changes the zoom level, where a smaller value means a closer zoom The level of detail used means that the shape may warp at high zoom levels. Changing the variable "precision" inside the editor may help reduce this effect but note that the time taken to run is roughly proportional to its value, so changing it from default 1 to 2 will cause the fractal to appear half as fast.