Here's the current Amidst map for "3751436458760916747" using MCJEv1.12.1.
Right now Amidst doesn't display Mansions or all villages in later game versions so the Steve icon is showing the location of a village that is visible from spawn.
There is no Mansion located in the area shown by this map.
I don't see any biomes near spawn that might have an overhang feature like shown in your third image.
Do you know what the coordinates are for it?
There are no dangerous weapons. There are only dangerous people. R.A. Heinlein
If you aren't part of the solution, then you obviously weren't properly dissolved.
Got the preset code, {"coordinateScale":1214.271,"heightScale":2062.2356,"lowerLimitScale":181.76967,"upperLimitScale":822.9768,"depthNoiseScaleX":416.5732,"depthNoiseScaleZ":165.1484,"depthNoiseScaleExponent":0.43692708,"mainNoiseScaleX":318.95505,"mainNoiseScaleY":377.86298,"mainNoiseScaleZ":376.77496,"baseSize":7.039578,"stretchY":17.05649,"biomeDepthWeight":2.9900265,"biomeDepthOffset":2.2344294,"biomeScaleWeight":4.8647823,"biomeScaleOffset":3.1353254,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":49,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useMansions":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":4,"useLavaLakes":true,"lavaLakeChance":52,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":4,"riverSize":4,"dirtSize":23,"dirtCount":11,"dirtMinHeight":0,"dirtMaxHeight":127,"gravelSize":42,"gravelCount":8,"gravelMinHeight":33,"gravelMaxHeight":169,"graniteSize":25,"graniteCount":18,"graniteMinHeight":0,"graniteMaxHeight":97,"dioriteSize":23,"dioriteCount":11,"dioriteMinHeight":9,"dioriteMaxHeight":67,"andesiteSize":10,"andesiteCount":15,"andesiteMinHeight":27,"andesiteMaxHeight":38,"coalSize":25,"coalCount":22,"coalMinHeight":10,"coalMaxHeight":57,"ironSize":15,"ironCount":37,"ironMinHeight":7,"ironMaxHeight":7,"goldSize":8,"goldCount":2,"goldMinHeight":0,"goldMaxHeight":11,"redstoneSize":10,"redstoneCount":5,"redstoneMinHeight":5,"redstoneMaxHeight":0,"diamondSize":26,"diamondCount":2,"diamondMinHeight":5,"diamondMaxHeight":38,"lapisSize":17,"lapisCount":0,"lapisCenterHeight":1,"lapisSpread":59}
I've made a post like this before, I don't know what happened to it, but feast your eyes on this.
The seed btw is 3751436458760916747.
What preset code did you use?
It was randomised.
Here's the current Amidst map for "3751436458760916747" using MCJEv1.12.1.
Right now Amidst doesn't display Mansions or all villages in later game versions so the Steve icon is showing the location of a village that is visible from spawn.
There is no Mansion located in the area shown by this map.
I don't see any biomes near spawn that might have an overhang feature like shown in your third image.
Do you know what the coordinates are for it?
Also, what are the customization codes used?
There are no dangerous weapons. There are only dangerous people. R.A. Heinlein
If you aren't part of the solution, then you obviously weren't properly dissolved.
The latest release of Amidst, version 4.6 can be found here:
https://github.com/toolbox4minecraft/amidst/releases
You should probably also read this:
https://www.minecraftforum.net/forums/mapping-and-modding-java-edition/minecraft-tools/2970854-amidst-map-explorer-for-minecraft-1-14
You can find me on the Minecraft Forums Discord server.
https://discord.gg/wGrQNKX
Try going to Re-Create World -> Customize -> Presets then copy and paste the code
Got the preset code, {"coordinateScale":1214.271,"heightScale":2062.2356,"lowerLimitScale":181.76967,"upperLimitScale":822.9768,"depthNoiseScaleX":416.5732,"depthNoiseScaleZ":165.1484,"depthNoiseScaleExponent":0.43692708,"mainNoiseScaleX":318.95505,"mainNoiseScaleY":377.86298,"mainNoiseScaleZ":376.77496,"baseSize":7.039578,"stretchY":17.05649,"biomeDepthWeight":2.9900265,"biomeDepthOffset":2.2344294,"biomeScaleWeight":4.8647823,"biomeScaleOffset":3.1353254,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":49,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useMansions":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":4,"useLavaLakes":true,"lavaLakeChance":52,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":4,"riverSize":4,"dirtSize":23,"dirtCount":11,"dirtMinHeight":0,"dirtMaxHeight":127,"gravelSize":42,"gravelCount":8,"gravelMinHeight":33,"gravelMaxHeight":169,"graniteSize":25,"graniteCount":18,"graniteMinHeight":0,"graniteMaxHeight":97,"dioriteSize":23,"dioriteCount":11,"dioriteMinHeight":9,"dioriteMaxHeight":67,"andesiteSize":10,"andesiteCount":15,"andesiteMinHeight":27,"andesiteMaxHeight":38,"coalSize":25,"coalCount":22,"coalMinHeight":10,"coalMaxHeight":57,"ironSize":15,"ironCount":37,"ironMinHeight":7,"ironMaxHeight":7,"goldSize":8,"goldCount":2,"goldMinHeight":0,"goldMaxHeight":11,"redstoneSize":10,"redstoneCount":5,"redstoneMinHeight":5,"redstoneMaxHeight":0,"diamondSize":26,"diamondCount":2,"diamondMinHeight":5,"diamondMaxHeight":38,"lapisSize":17,"lapisCount":0,"lapisCenterHeight":1,"lapisSpread":59}
I don't know weather I should leave this be, or re-post it. Probably leave it be.