The word "skyscape" refers to the view of the sky and its surroundings. There are many synonymous phrases that can be used to describe it. For instance, you can use the term 'heavenscape' which refers to the sight of the sky and the stars at night. You could also mention the 'cloudscape' which depicts the different formations of clouds in the sky. Another option is to use the word 'atmosphere', which encompasses the various elements that constitute the skyline like the clouds, air, and weather conditions. Lastly, one could say 'horizon' which denotes the distant view of the sky that meets the earth. Overall, there are many ways to describe the scenes up above, and these synonyms can add creative flair to your writing.