How to make lush ambient pads with dog noises

I was goofing around with some samples I had taken of strange noises my dog makes and ended up making a bunch of pads and wrote a little piano piece around them. I got a couple requests for sound design tutorials in the comments section, which are now available here:

Hope you enjoy. Also, I'm just a piano player trying to figure the production side of things out over the last couple years, so feel free to offer feedback / other tips / suggestions!