material modeling-balsa wood modle

this is a copy of a grey card model of one student. for this model, I am much more confident then the grey card one , as we have been asked to use balsa wood make models for our studio. I have already familiar with it. our tutors also teaches as some techniques of making balsa model. she said if you really want to get a beautiful model, u need to sand every piece of your model. also because balsa is very soft, so when cut , it's very easy to cut askew. the technique I learned to cope with this is-you have to stand up and make the knife straight and cut toward to you but not cut from left to right or form right to left. I also learned how to use pins cleverly in making balsa wood models.