How to paint Tyranids, PJ style pt.1

Well, the third day on the store I tried to paint my Tyranids, I took them with me for a reason and the reason was that I have some kind of diorama in mind. And for that to be realized I need a ton of Tyranid Termagants, Hourmagaunts and Gargoyles. Well, the only 'nids I have with me are termagants with fleshborer/spinefists. They are allready primed white so I just need to paint them before I ship them home. I cannot have a hoard of gaunts while I travel around, thats why I send them home. But until now I have not sent any. I'm such a slowpoke.
Well, here I'll show u what I've been doing. it's not much but it's something.