Ack...really making us work to see your pictures. XD
Anyway, the two things you might want to look into are two-toned wigs (usually black roots, plus a color on the tips) and wigs that already have a spiky puff (thicker crimped hair at base of the top strands)
...such as tina punky wigs available at witchwigs.com and other places, too. Here's what they look like unaltered -- http://images.cosplay.com/showphoto.php?photo=29841
I used a two-tone mix for my Kaoru wig, and it was so much easier starting from that than trying to dye anything or add additional strands of hair. (Okay, and there -are- added removable spikes in the Raison D'etre version of it there...made from all the hair I cut off the sides. But most of it is already spiky just due to the nature of those wigs.)
I also used a tina punky wig for Lida and ended up cutting most of it off, but it was worth it to get the bangs and feathered effect which you just don't see very often in already short wigs.
Anyway, you can get the puff and the mullet and the roots just by cutting down a wig like that, and you don't need to do much else.
...And yeah, Pomade is great stuff for crazy angles. Kyo's hair is kinda not even that extreme here, so it should definently work out for you and you won't need much of it.