<a href="https://marketplace.roll20.net/browse/set/5483/stylized-tavern-and-home-creator" rel="nofollow">https://marketplace.roll20.net/browse/set/5483/stylized-tavern-and-home-creator</a> looks like it might work for your purpose if you put it on a tree sort of background and added a tree inside of it, since it's very modular. Or you could get these pieces <a href="https://marketplace.roll20.net/browse/set/748/tavern-props" rel="nofollow">https://marketplace.roll20.net/browse/set/748/tavern-props</a> and put them in a large stump setting, which I'm sure exists. And some more nice preset tavern pieces. <a href="https://marketplace.roll20.net/browse/set/850/arcknight-maps-the-fireside-tavern" rel="nofollow">https://marketplace.roll20.net/browse/set/850/arcknight-maps-the-fireside-tavern</a> None of those are my art, but hey, support them too! Probably any map artist would take a private commission to modify their map if you found someone who you liked who had a tavern that just needed a tree added to it and you couldn't do so yourself. Yes, talking about where to find custom map art is against the rules. Roll20 does not support the livelihood of their creators unless somehow we can make it all only from the marketplace. But I'm sure there are some free tavern assets you could use as well, and I know there are many free trees. Look for the Vinytari project download if you have a mapping program, he collected a ton of free for all use RPG assets. :)