The landscspe in Minecraft worlds in general needs work. It should be more realistic with bigger hills and valleys, cliffs, better rivers and deeper lakes, waterfalls, and more random block generation like some cobblestone and mossy cobblestone in caves and different blocks incorporated into mountains like in real life. The worlds just seem boring and artificial they should look more like things you see people terraform on YouTube. look at this example of clear continents and mountain ranges someone built. That’s what I invision for Minecraft.