After having to sell my original Nid army for rent (having no job sucks), GW just HAD to release a flashy new book for them. This was just as well because most of my old army wouldn't have worked in the new book. Once I got a job I started building them back up and this let me explore a new scheme. I also themed all my conversions to include more insect-like abdomens.
I decided to study the 3 existing GW paint schemes: Behemeth, Kraken & Leviathan. All 3 share the following: Lighter chitin than carapce, Carapace is always based black and then highlit up to its color, Yellow eyes. Once I had this down and the fact that Nids work so well with washes, I decided to go with Green chitin and Orange Carapace.
Hive Tyrant with magnetized wings:
This is my old Tyrant(the only model I did not sell). It is made of Fex parts, Tyrant arms and Balrog wings.
Tyrannofex:
This is a T-rex toy with Fex bits on it.
Guants & Gargoyles:
Most of these are not finished, but here are my starting examples. Notice the alternate 'fleshborers' on the right-side Gaunts. This is to help pick out different units.
Mycetic Spores (for Zoanthropes mainly):
These are paper-mache eggs with hot glue & Nid-bitz.
Spore mines & Objectives:
WORKS IN PROGRESS
The Following are unfinished (painting), but any conversions are fully assembled. I finally got all of them painted to a point that they just need the detail work (carapace, eyes, claws & teeth, etc).
Tervigons:
Using plastic dinos as a frame-work, I used Fex & Trygon bitz to make these. I also used paper-mache eggs for the abdomen swolen with Gaunts.
Trygons:
I used bitz from the Tyrgon, Mawloc and Prime to make these look how I wanted.
Zoan & Venomthropes:
I replaced the front arms of the Venomthropes with claws, so I could use the Lashwhips for other conversions. The Zoanthropes are made from Hormagaunts with Trygon Prime/Mawloc crests. The dorsal vents are from the Mawloc.
Hive Guard:
Simple conversions made from Warrior bodies, Gaunt heads with greenstuff over the eyes, and Barb stranglers with fleshhooks.
Warriors and Prime
Since I started with the Nid battle force and used all my Warriors for Hive/Tyrant Guard and wasn't planning on using the 'Stealers, I used their bodies with the left over Warrior Heads & scything talons to make more sleek, gangly Warriors. The Prime is a Warrior with an 3rd ed ravaner face, pistacio shell shoulder carapace, lashwhip tongue & boneswords. The abdomen is a Trygon Prime chest carapace over lots of greestuff
Tyrant Guard/Primes:
Mostly used as Gaurd, but make good alternate Tyranid Primes, these conversions use Warrior bodies/rending claws, Venomthrope lashwhips, Gargoyle heads and boneswords made from upside down scything talons with Dark Eldar vehicle blades glued to them. Again the shoulder are pistacio shells.
Skink-Guants:
In an effort to have different-looking Guants for Tervigons, I use Lizardmen Skink with fleshborers. They can be said to be "not fully formed" guants.