Through their series Experiment, artists duo hiding behind the name 25th Century, Lucas Ighile and Ayla El-Moussa, imagined portraits that plays with the superimposed technique and the effect of double exposure. To symbolize anonymous people, they replaced the women’s faces with nature shots. This reflects the liberty and tranquility of space but also the feelings and mind of each subject.
ALK3R 
The pictures are amazing! This cant be done by an app right? It is all from the beauty of photoshop? – Cezane
No this is not an app, thsee are made from the artist with different types of photoshop
Beautiful. My favourite one is of the sea. Although the cityscape is stunning too. They all are.