Hello Scott, All of my games are "sandbox" here on Roll20. That basically means to me that my players might decide not to go into the adventure I just finished in time, or they might get distracted by conversation with a passing peasant for an hour or two. Brian did a great job of listing some of the artwork available here on Roll20. I won't repeat that. But for my "toolbox" I've put together. You know what type of game you will be running better than anyone else. Find/create some generic maps that can be used repeatedly. I have maps with names like: Forest, Meadow, Rocky Hills, Steppes, River, Falls, Coastline, Village Market, Spaceport, etc. Add the word "winter" in front of some of them and you get the idea of seasonal maps. Grab some photos off of the net. Go poking around in the photos on Google Maps. Use photos that you have taken. But be able to present images for times you are using Theatre of the Mind. If the party is in a medieval style marketplace, put a picture of that up. With the constant need to come up with adventure maps: learn to build maps from art assets here on Roll20 or some off the net. To give you one idea - I created a map with 60 or so rooms and corridors. With a few blocks here and there - and adjusting what the players can see - you can reconfigure the map endless different ways. And if you build more than one map with the same artwork - it keeps them guessing. One advantage that Brian did not mention: Any purchased artwork for use on Roll20 does not count against your storage limit. (I believe that is still true.) I am not an artist and can barely figure out anything more advanced than Paint. But I have used sets to build maps, used Snip and other tools to grab pieces, and move things around, then captured the entire map in one graphic. The more you work with the tools the better, and faster, you get. Hope this helps, and the best of luck with your games.
