Now you are actually drifting into another area of complexity
The colour contrast is a good start but I think your lighting is better in the first one. The second is over exposed a bit, so it's a little washed out as you noticed, but you have also lost some of the form of the first image.
You have to keep in mind as you adjust light quality and position that it doesn't simply affect contrast, but also how you define/show the forms of your subject. If the shadow in the first one is too dark for your tastes then it may be better to just fill in the shadows with an added light or use a larger/softer light (either way you would be reducing contrast ) rather than move your light.
See how much flatter the sculpture appears in V2? (not contrast flat, but physically flatter). Look also at how the second light position puts some big hotspot/reflections on the cheek - it may be to your taste but I preferred v1 myself.
You may wish to look at using larger light sources for such a glossy subject as well. It's hard to avoid creating hotspots/small hard reflections so you could go with invisible emitters to clean them up selectively, or larger/differently shaped emitters to make them attractive instead. I know that's not the real focus of this test, but since the highlights are a key part of your contrast it's relavent IMO.
I don't mind the sculpture off centre. It's a less static composition.
b