I have to agree... I really loved this when it was monochromatic... but once the over-emphasized panel accents were in place, it really ruined the effect for me.
SUBTLE is better. The TMP Klingon ship worked, because it was very, very subtle. Qo'nos 1 was okay, as well, because it was subtle. The TMP 1701 was subtle... you get the idea.
Go with big, bold coloring, and it doesn't look like a ship anymore, it looks like a toy.
Remember... color variation is less detectable by the human eye the further away from your viewing object you are. So, you model "scale" in part by making colors as similar as possible while still maintaining detail.