Medusa

Hi Ritchie.

Your Medusa is looking awesome. I can see your problem, and I'm wondering if you can use zBrush? If you can, then you'll be able to do the texture, spec and displacement for your Medusa easily.
The other option is painting the seems out in bodypaint, which has some great tools for this type of thing. If you go down that road, I would look at laying the UVs out with 5-8 snakes in one UV space, paint your textures giving each snake the variation you want, then overlap the remaining snake UVs on top. You can move then around giving more variation in the overall appearance. After you've done that, you'll have to take it into Bodypaint or some other 3d paint package and paint out the seems.
Hope this helps.
C
a~