Skye will forgive you Phil. What you see in that picture is not Skye because he is still in your heart and will always be so.
Please do not feel bad Phil - I think that Skye was telling you that you no longer needed him with you in any form because he will be forever in your heart. And in mine.
So sorry Phil. I don't keep ashes - I would be knee deep in them if I did - but I know how important they are to those who do keep them. Either try to save as much as you can, and transfer them to a new container, or scatter them somewhere where Skye loved to be. His spirit is still in your heart, and that will live on for as long as you live. Hugs.