I'm so sorry for your loss. You'll know when the time is right. When my soulmate RB MooShoo passed 2 years ago, I slept with the bag of his ashes wrapped up in his baby blanket with his scent on it for almost 6 months before I was able to finally put everything away.

Everyone grieves differently and at their own pace.

Your Shadow was a beauty and reminds me so much of my 20 lb Tuxedo Spike.