The process of creating of this illustration was a bit different, since it is based on a building, not a character.
It began with the creation of a 3D space, which serves as the canvas for the art. 

Next, the architecture of the building is planned and the entire perspective is applied to it.

Strokes are then added to give the illustration structure and form. 

Shading is applied befor colors, to add some depth and dimension to the art.

After that, colors and aditional lighting were added to bring the illustration to life and give it a sense of realism. 

Finally, effects are applied to complete the illustration and give it a polished, finished look.

Throughout this process, it is important to continually review and refine the art to ensure that it meets the desired vision and criteria.