Agreed. The human part of a centaur doesn’t have any horse features, so why would a giraffe centaur? It would just be a giraffe body with a person torso attached.
This would make the second picture possible (just without the fur on the human part) - a centaur also has a duplication of parts of the spine.
There is no horse neck on a centaur though, so not sure why there would be on a giraffetaur. Since they are all imaginary creatures, I suppose anything you want is the right answer.
Ok, I'm a smart fella but thinking about this is taking up way too high a percentage of my smart cells.
I hate left less but it would clearly be right, no way you'd evolve arms that can't reach your mouth.