I'm having trouble beating the last challenge in this park. I have to impress two VIPs, one wants to visit an adventure themed area of the park and the other wants to visit a Sci-Fi themed area of the park. I have no problem making good coasters and getting a park to make plenty of money but I suck at scenery. I thought I did a decent job on the adventure themed area by putting some bamboo covering over some of the sandy paths, palm trees, a rock slide next to one of the rides, even adventure themed trash cans, benches and ride entrances but it wasn't enough.
Anyone have any tips on how to impress these VIPs? This is the last thing I need to get done before unlocking the last park in the game.