Samak has only two versions: the American version and the English version. As for the Australian version and the Russian version, they are created by domestic dog vendors themselves and are not recognized internationally. Satsuma's ears are inverted triangle and thick. The American version means that the hair is good, the face is sweet, and the ears are covered by the hair on the head. But the English version of the head is not so durable, and the ears are bigger. Usually the Russian version refers to the English version, and the Australian version refers to the American version. Your dog's ears are set too early. It usually takes three months for Lill, so you'd better confirm his lineage again. Whether you can see the inside of the ear from the outside is determined by the amount of hair in the ear. It doesn't matter whether it's good or bad, but it looks better with more hair! From the photos, it seems that the shape of the puppy's ears is not very good.
External personality has nothing to do with learning to walk. Sometimes dogs that stay on the slippery floor at home for a long time, don't often go out for exercise or don't exercise enough, are prone to the appearance of external characters, and calcium deficiency can also lead to this situation. You'd better take him to the hospital for examination. Such a small dog should not jump to conclusions. If it's still eight in five months, do more exercise and eat some calcium powder. This is different from people's habitual external personality and there is no need to correct it.
Feeding is very learned, so you'd better buy authoritative books to read. It is impossible to talk about everything on the Internet, but some details are very important, not to help you, but to be more detailed in the book.
If possible, I suggest you return this dog and choose another one somewhere else. If you can only change it, then choose it comprehensively!