Dude here, speaking for both of us. The Diva and the Dude had some down time here in Phoenix after a talk I had to give. Down time, you say? Not when we have our iPhones with us! Who knows what we did to make these images?!
Mine, the one with the birds and the one with the night time trees in the background, were made on two apps new to us -- Effect Touch and PicMix. Both are excellent, allowing one to blur the transitions between layers and to paint in effects where you choose.
Diva's images (the other two) were made mostly with DXP (double exposure) and many, many layers.
Hope you enjoy looking them even half as much as we enjoyed making them!!!!!