Hello everyone.
Yesterday evening I started Blender modeling and so far I think I have pretty good results. I’m still experimenting around, so keep in mind that I’m relatively new to 3D modeling.
Here is a clip of the meshes I created so far.
robloxapp-20210107-1402506.wmv (2.0 MB)
Let me know! 
Can you post a video in mp4 format? I don’t want to download a file.
heres an imgur link instead Imgur: The magic of the Internet
It looks very clean and simple, how low poly should be. I can’t find anything wrong with it, keep up the good work! 
Despite the lack of design on the terrain it looks good and simple continue to experiment with creating variety of trees include different sizes - shapes - formation ect. Try experimenting with designing vegetation to add to the land. The terrain of the build has not much going on but regarding it’s a start to 3D modeling there certainly basic and simple.
Trees looks fine and good perhaps add some roots placed within the ground or smaller plants on the tree. I’d say good, job continue to experiment and practice as overtime you will improve your modeling skills then you will learn how to create more detailed models.