The lightpiped eyes usually light up pretty well, I swear!
I added some paint to Animated Voyager-class Prime as soon as I cranked out some pictures of him plain. It did take a trip to Grandview Hobbies to get myself some nonsucky new Flat Red and Yellow, but it was worth it. I "finished" his arms by painting the middle sections on either side of the elbow red, plus I painted in the red stripes on either side of his tummy grill. Other than that, there wasn't much substantial to do. I used clear blue to bring out his lips, and I did the usual black lining around the eyes, yadda yadda, etc.
The red on his elbows really completes the look for me. Tamiya paints, I love you so.
Check out this awesome Walky run-cycle animation by Fisi-Visi! He's spectacular.