I need to add a theme to a map and some icons

Hi, I need to put a skin on this map to make it Halloween themed and sized as A3. I've tried doing it with ChatGPT but it doesn't do a very good job. I also need to change the graphic for the Wildflower Meadow to be a Pumpkin patch with text label - Just need to put a few pumpkins down. Also, there are five zones to add on the map and I need an icon for each of them ZONE A (Spider Zone - on the woodland path about 45% down between points 4 and 6, ZONE B (Graveyard one) This is just to the north of point 6 on the map, ZONE C (Pumpkin Zone near point 9 in the Pumpkin Patch) , Zone D (Witches Zone - In the trees Just North of the point 12 on the map) , ZONE E (Ghost Zone - Just North of point 14 on the map). With the zones, these need to stand out as they are the main parts of the map that need to be visited on our event day (so maybe put a yellow circle around each one).