Hmm…
I love orange/yellow colors. Not overly saturated yellow, but right in the spectrum of orange. I love how fun they are to fill texture. It’s one of the reasons why I love coloring talons so much.
Lighting them is fun, placing that nice red tint on them to get that warm blood look in them is really fun too.
I don’t think there’s a color I hate working with, though if these colors are used improperly, red, purple, and blue and be very frustrating to work with.