Slick man, very nice indeed. And as others have said, great use of colour!
Anywho, if you still haven't got the indicators sorted then I'd suggest the following:
1) Check wiring for faults and/or breaks. Ensure good soldering, connections and earths. This'll usually solve most anything electrical.
2) Check bulb units. Ensure the bulbs aren't faulty and that their housings and contacts are corrosion free.
3) Check switch unit. Wiring ok? Contacts clean? Hmm...
4) Flasher unit. A bum flasher will wreck the whole circuit; the one on my GS is water damaged and only allows a gradual fade-up to being 'on'...and then doesn't turn off. Hysterical.
If you can't figure it out after all that and all flashers run off the same circuit, you may be overloading the flasher unit. Check to see what its rated for as a max load and then check the wattage of the bulbs. If they're running on or over the rated value I'd go a higher unit. Electronic flashers will be more reliable long term and allow use of low-load indicators like LED units.
Cheers, hope this helps - boingk