I really like the top half of the designs (though they're perhaps a little too detailed), but not so much the bottom half. I seem to have a thing for vivid autumn colors. That would be good to remember for this project and my own designs.
Glass App Icon mobile tablet phone game user interface gui ui | Create your own roleplaying game material w/ RPG Bard: www.rpgbard.com | Writing inspiration for Dungeons and Dragons DND D&D Pathfinder PFRPG Warhammer 40k Star Wars Shadowrun Call of Cthulhu Lord of the Rings LoTR + d20 fantasy science fiction scifi horror design | Not Trusty Sword art: click artwork for source
Great use of negative space to incorporate 2 subjects into one: an airplane and a map icon symbol to represent traveling. It's easily understandable what this app icon is for, and the scaleability would work well since it's such a simply design.