You need to include the pict. It take some time to grasp your notion with no pict attached.
Well, when it comes to an IELTS task 1 introductory paragraph, I strongly suggest for both EF members and my IELTS students in English Studio, Kampung Inggris Pare, Indonesia
to construct their sentences in passive forms. I tell you this since you are tested in how good you deal with such sentences in IELTS task 1. This will be a plus if it is added a 2-sentence overview. A closer look at the sample below regarding the picture attached;A breakdown of the figures for males and females reading books at Burnaby Public Library over the period in question, from 2011 to 2014 is presented in the line graph. Overall, it can be seen obviously that a gap between the figures had narrowed down. Initially, more males read books, while the converse would appear to be true for females' figure after overtaking the former one .
hope this helps :D
- eddy suaib