1, kk Kindergarten is a place where students with zero foundation or weak foundation practice their own foundation. There are picture packages from simple to difficult for you to copy. With the open courses "Drawing Path" and "Drawing Skills", the foundation will be improved after long-term practice. This is to practice your foundation. I remember sketching packages and other exercises. You can choose according to your own discretion, but it is more important to practice grasping (copying modeling).
2. If you are asking about applying for krenz's regular courses (perspective, composition and color), I personally suggest that you practice it for a while before applying for classes.
3. Perspective is not particularly strict with the basic requirements. It is mainly to establish a systematic perspective concept in your mind, which is easy to understand without many proper terms. Homework also has a nanny tutorial, which can be drawn as long as you follow the steps, but you need to be careful and patient, and then be familiar with the use of ps pen tools and free-form tools, and the efficiency will be greatly improved.