I chose the concept of @孟祥宇 mxy950820.artstation.com. I only have time on the weekends for work, so I quickly set about blocking out the elements and shapes according to the model and even took a few vacations to fit in the challenge time. After 60 hours of work I was able to finish the model and renders and deliver it on time. In the link you can also see the stages of development of the model. https://www.artstation.com/challenges/medieval-back-and-forth/categories/173/submissions/79419
P.S.Special thanks to my colleagues @Miro Mironov and @Simeon Vasev