Welcome to the site! What you have there is some species of ficus

My first advice would be to forget about the "humidity tray" that you have full of water - they don't really do anything. You can have your tree sitting on a tray of rocks for aesthetic/overflow purposes, but you don't want your tree sitting in water. Otherwise a ficus should do ok indoors as long as you have it in a bright window. I have a large ficus that I bring in every Fall and put back outside in the Spring and it does just fine being indoors for 3-4 months each year. Right now it appears to be suffering from shipping/temperature shock, but they are strong trees and it should spring back. Just make sure not to over-water. When a tree doesn't have much foliage its rate of transpiration (and loss of water) is down dramatically. Wait until the soil is moist and the surface of the soil is dry (not wet) before watering again. You don't want to rot your roots by growing your tree in a swamp
Your juniper, on the other hand, may not be happy indoors. It is very difficult to keep conifers indoors without supplemental lighting - and even then they would be happier outdoors.