Drew up a revised Sapphire reference sheet. Hoping to start up her Tumblr soon~ :Y
Okay, I have a class to go to, but I just wanted to comment on this. Every time I see drawings of Sappy I get really bugged by that blue…
The blue itself is fine! Nothing wrong with having a highly saturated main colour… but I think it stands out too much against the grey coat, destracting the eye and making it harder to actually appreciate the image as a whole. Here’s a quick throw-in from me before I go to class:

Full Size PNGs:
Reason I see is that the mane is highly saturated, while the coat has no saturation at all. Almost everything has SOME colour! In the above GIF I made a very rough filter over her coat in some areas as stated on the right. It’s a majorly subtle change (probably totally irrelevant to most people), but I think it brings out her coat a great deal and makes her a lot more pleasant to behold.
Doesn’t have to be purple, but I do recommend at least using a colour other than pure blue. Keeps the contrast there.
That’s the only one I think is REALLY needed (no matter how pedantic it may seem).
My other thoughts (as shown) are that you should desaturate the yellow, primarily, since it clashes with the blue at such high brightness, I think… maybe also add some colour to the Pipbuck (most of my designs have it a really silvery green), but they’re just trim and it’s not nearly as prolific.
EDIT: Expanded my example.
