[Challenge] About Christmas Tree 🌲

Hello, Check my code. I made the whole field in the form of a two-dimensional array. Ie each symbol lies in a certain cell of a two-dimensional array, which in turn is in the class ChristmasTree. What do you think about this? How could I simplify the code? Thanks. https://code.sololearn.com/co0ln5Q27nFf/?ref=app