Hi there! Here's some general and maybe very direct feedback:
The textures are very repetitive and have a different level of blur and sharpness. The leaves in the background look randomly placed, more like they're floating. The bark texture feels flat and isn't giving volume to the branches. There are outlines around some objects, and others don't have them.
You could try relying less on textures and brushes first. Textures should complement the shape of objects. I'd recommend working with shapes and setups first, and textures later.
Here's a quick example of a different setup of this scene:
The textures are very repetitive and have a different level of blur and sharpness. The leaves in the background look randomly placed, more like they're floating. The bark texture feels flat and isn't giving volume to the branches. There are outlines around some objects, and others don't have them.
You could try relying less on textures and brushes first. Textures should complement the shape of objects. I'd recommend working with shapes and setups first, and textures later.
Here's a quick example of a different setup of this scene:
