The first render features an old model with a neural node added. I changed the particles from points to spheres, increased the radius and transmission, reversed gravity and direction, and touched up with color and lighting. 

Short playblast of a scene made in Maya. The mushroom was sculpted from a sphere polygon; the cap and stalk detached and separated for later animation. The grass was made using nHair, the fairies using nParticles. Wind and gravity were altered, and the particles have color/glow effects.