You need to change much to many and come to coming/visiting. Otherwise very good.

The bar charts give information about visitor arrivals in Vietnam from the USA, France, and Australia in 2001 and 2002. Overall, the USA had the most visitors to Vietnam while Australia had the smallest number of visitors. Visitors from all three countries increased between 2001 and 2002. There were 230,470 visitors from the USA in 2001, more than twice as many as France with 99,700 visitors. Australia had a slightly lower number compared to France with 84,085 visitors. The number of visitors to Vietnam in 2002 from the three countries increased. Vietnam received 259,967 visitors from the USA, an increase of 29,497 (it is better to say 'about 30,000' - IELTS is an English test not a maths test) visitors in comparison with that in 2001. Also for France, there was an increase from 99,700 visitors to 111,546 visitors. Australian visitors who went to Vietnam grew from 84,085 visitors to 96,624 visitors. Well done. Overall this was quite good. Make sure you use clear paragraphs. If you put your essays in the 'Exercise' section they are easier to correct and you can see the corrections more clearly.

The following chart shows the visitor arrival statistics in Vietnam from the USA, France, and Australia in both 2001 and 2002. Overall, the most visitors who arrived in Vietnam were from the USA while Australia had the least number of visitors to Vietnam in both 2001 and 2002. There were 230,470 visitors from the USA in 2001, which is more than twice as much as France with 99,700 visitors. Australia was slightly lower compared to France with 84, 085 visitors. The number of visitor arrivals in all three countries increased in 2002. Vietnam received 259,967 visitors from the USA, this an increase of 29,497 visitors from the previous year. There was also an increase from 99,700 visitors to 111.546 visitors from France. The number of Australian visitors that had come to Vietnam grew from 84,085 visitors to 96,624 visitors. (STATE THE YEAR HERE). ***If you would like me to give you more detailed explanations of certain errors and advice on how to further improve this text to sound more professional please let me know on my profile*** Hope this helps.