# Python 3, 185 bytes
Translation from perl (193) with some improvements

    Y=-1.2
    r=range
    for _ in r(25):
     X=-2
     for _ in r(80):
      r=i=0
      for n in r(16):
       r,i=r*r-i*i+X,2*r*i+Y
       if r*r+i*i>4:break
      print(".,:;=+itIYVXRBM "[n],end='')
      X+=3/80
     Y+=2.4/25