Don't be alarmed, but your spider seems to have a strange growth on it. I'd recommend getting it to a specialist immediately.:)
You know most people have the common courtesy to turn white with fright when confronted by a "scary" critter. You sir obviously have a much worse condition. Perhaps this spider was radioactive.
Great image Roger and nice effects. Merry Christmas and Happy Holidays to you as well.
~Eubeen Hadd