I don't think there is any "correct" order, although there are orders which result in more and less noise, as well as orders that bring out the best in certain pedal combinations. Ultimately, it depends on what you like to do and how you intend to use the pedals in question.
If there is anything I would change, It might be to stick #2 after #3, stick #4 (overdrive) before the Fuzzface and DS-1, and the volume pedal after the various distortions.
Why? Pushing any distortion pedal harder can often yield some pleasingly sick and over-the-top tones. If you stick the overdrive before the more serious distortion pedals you get to do that. Sticking the overdrive after them eliminates that third option (overdrive->fuzz->demented fuzz).
Compressors amplify whatever noise is presented at their input, and wahs have never been known for being dead silent. Therefore placing the compressor after the wah will produce a more silent signal path when both are on and you're not playing. As well, different wah settings produce different signal leves, and are likely to confuse the envelope detector in the compressor a little. So, more consistent and predictable compression, plus less noise, if compressor precedes wah. However, I can imagine reasons for wanting it the other way.
People use echoes, distortions, and volume swells in a wide variety of ways. Personally, I love being able to fade in a nasty tone and have it echo. If the volume pedal goes before the distortions, the note won't start out nasty, but will only become nastier as you feed the distortions more input signal. That's one way of doing it, I suppose, but dist->vol ped lets you pull the footpedal back, slam the strings hard, and gently fade it in. Again, an aesthetic choice rather than an electronic necessity.