blender graphic design

Create a building model and a tree model
The building must be a single connection mesh. The tree must be low-poly ( less than 500 polygons), connected and manifold. The building has diffuse gray material with high roughness and the trees matte brown trunk and shiny green foliage. Save them to .obj files
Create a textured terrain scene (color and normals) with a building and 10 trees instantiated from the saved model and placed on the left side of the terrain.
·Trees are also rotated at random angle to the z-axis, possibly scripted. The trees are placed in a collection. On the right side, near the building, model a crane model consisting of three parts in hierarchy (base, tower that can rotate with respect to the base and arm that rotates around the axis of the tower) and the parts are inserted into a second collection (rough metallic material). Change the light so that it illuminates the entire scene. Perform a rendering that displays the building and cranes.

There is a possibility for collaboration in other projects.