Option #1

Using Sons of Horus and Wazdakka which are a bit more muted tones of green and red

1. Wazdakka Red
2. Tuskgor Fur
3. Incubi Darkness
4. Sons of Horus Green

Option #2

1. Sigvald Burgundy Screamer Pink Pink Horror Kakophoni Purple
2. Terradon Turquoise Lupercal Green Kabalite Green
3. Stormfiend / Kroxigor Scales Stegadon Scale Green Sotek Green