That's a sweet hommage to Chelsea. You gave her 6 years of comfy, loving life, she gave you 6 years of love, and she could depart in your arms, I hope those facts help you a little through those emotions.
I am sure she found the loved ones you mention, and I told Scherlock (sweet dog) and Grizabelle (the international travelling guinea pig) to give her a warm welcome over the rainbow.
I have beliefs for after death - most of them faith, not certainty, but I am CERTAIN those animals who shared this bond of pure love with us are not lost to us forever, nor us to them.
In short, hugs.