Overpopulation
Stampede
Herd mentality
Uncontrollable
Equine invasion
Excessive breeding
Equestrian chaos
Too many mouths to feed
Horsepocalypse
Equine overload
Runaway stallions
Horse tsunami
Galloping madness
Hoofed horde
Out of control.
Amalgamationmutation, extra arms, extra legs, too many fingers, extra fingers
mutated hands, fused fingers, melted, weird neck, 
3D, artifacts, logo, watermarks
blurry eyes, teeth, 
duplicate, copy, same, twins, cloned
noise, 
bad anatomy, 
bad lighting,  too dark
cropped, cut-off
poorly drawn hands, poorly drawn face,
blurry, 
gross proportions, bad proportions, disproportionate 

ugly, morbid, wrong, bad, asymmetrical, deficient, 
mutant, mutation, deformed
disfigured, abnormal, weird, 
damaged, marred, misshapen, distorted, mutilated,
extra limbs, malformed limbs, excessive
incomplete, missing arms, missing legs