The 4th one is a bit better bigger. Click any to enbiggen.
M3D formulas are in this thread. (http://www.fractalforums.com/mandelbulb-3d/a-few-formulas-%28for-luca-d%29)
(https://lh3.googleusercontent.com/-GX7d2FRnAVc/VisEbyw_fLI/AAAAAAAADQ0/VVgsxIglMcw/s640-Ic42/doy2.jpg) (https://lh3.googleusercontent.com/-GX7d2FRnAVc/VisEbyw_fLI/AAAAAAAADQ0/VVgsxIglMcw/s0-Ic42/doy2.jpg)
(https://lh3.googleusercontent.com/-0kT3i4qAr0E/Vir_CWtouII/AAAAAAAADQc/zZZafM2QEf4/s640-Ic42/doy.jpg)
(https://lh3.googleusercontent.com/-0kT3i4qAr0E/Vir_CWtouII/AAAAAAAADQc/zZZafM2QEf4/s0-Ic42/doy.jpg)
Parameters and formulas (for the above image) in this thread: http://www.fractalforums.com/index.php?topic=22123.msg87998#msg87998
(https://lh3.googleusercontent.com/-BoU8gAkkrl0/VisGOluC76I/AAAAAAAADRI/_AtWoYrZKCk/s640-Ic42/doy3.jpg)
(https://lh3.googleusercontent.com/-BoU8gAkkrl0/VisGOluC76I/AAAAAAAADRI/_AtWoYrZKCk/s0-Ic42/doy3.jpg)
I should make another parameter set... here is for the next one. Need the formulas from the thread.
Mandelbulb3Dv18{
g.....s/...c3...w....2....kuN9SddYUvz0AGSDGiNA1EHZ0uiHI9qzfEGGXEmD0VzA2atMI6l5sj
................................OFppo6qBF.2........A./..................y.2...wD
...Uz6....U3/.../M.0/.....kj....3/....E3.....YhlfusQh1nD/..........m0dkpXm1....U
./....kD12../..........wz.................................U0.....y1...sD...../..
.z1...sDpBCMhudpjwX0khd8V.A3zgJSFrJajDkjE59uBRVbRvfiSuGIfhC6z6oT/9BADpmDrwdB1fWw
KwHFoN28Npq8zKiJopj.m.mDU.....o82.............sD.6....sD..G.....................
.............oAnAt1...sD....z...........................................D....k1.
.....Ksulz1.......kz.wzzz1.U..6.P....Y2...EB....a/...s/....F....6/...I1.....SF52
...U.0aZczDM6/nzMg2czX6dE16.0c..jeDk..UoK/nl2xvj6sM93P58iz1...........U.8.UQgk0.
.wUmc2beYz1.dA8E5Exwz0........../EU0.wzzz1...........s/...................E.2c..
zzzz.............0...................2./8.kzzzD............8....................
/EU0.wzzz1...................................UTVR..y3q/yzz/k.1A..1Ak.vzDsnwF.UDn
5VTzThdht0kaqaPiQs5y3q/.sLM5s1bTsLM5.UTVRUDlyVTVR..y3q/yMw5y3q/.sLM5snqTsLM5.UTV
RUDkzVTVR..y3q/y...y3q/bzz/k.1Akyz1yATomxzpaqaff................................
E.E..I.B/3U.....I....6....UEZtKNnZ4IdtKNlsqPNd3.................................
...................../.........E................................................
................................................................................
.....................2.....3....0....6INiJqQd/JOiJKA.waQhB1.....................
...............................E..........2.....................................
................................................................................
................................/....E/...U.....0JaPZBLOI7LMiBbNj7LPn.EOY/......
................................nAnAnAnAvznAnAnAnAnyz..................CD02.....
.UnX.1.................CD02......UnX.1..........................................
..........................................U.....I....6....UEZtKNnZ4IdtKNlsqPNd3.
...................................................../.........E................
................................................................................
.....................................................2.....3....0....6INiJqQdFZQ
VtqQaxaQh71....................................................E..........2.....
................................................................................
................................................................}
{Titel: doy5}
(https://lh3.googleusercontent.com/-qDpCdZVLeBA/VisJS9N-ffI/AAAAAAAADRg/UBCKZG_XFtI/s800-Ic42/doy5.jpg) (https://lh3.googleusercontent.com/-qDpCdZVLeBA/VisJS9N-ffI/AAAAAAAADRg/UBCKZG_XFtI/s0-Ic42/doy5.jpg)
(https://lh3.googleusercontent.com/-Zr5P8pL-WXM/VisJWAkjFwI/AAAAAAAADRo/rPFcdH5uedA/s640-Ic42/doy4.jpg) (https://lh3.googleusercontent.com/-Zr5P8pL-WXM/VisJWAkjFwI/AAAAAAAADRo/rPFcdH5uedA/s0-Ic42/doy4.jpg)