environment concept for isometric game Thread

Hi,
I would like to learn how to create an isometric environment / map for a game. I understand the isometric concept, however I have issue when I have to draw the terrain (grass, river, etc...) or map borders (rocks, beach, etc...).
I would like to know if someone could help me with this topic, telling me the process or forwarding me to a forum or course where I could learn it.
thank you

Here you go:

Design grid layout.

Establish perspective.

Create terrain elements.

Add buildings and structures.

Populate with props.

Incorporate lighting and shadows.

Test for gameplay functionality.

Optimize for performance.

Learn at Hero Vired about the gaming concept improvement

Edited by: Simran12