Here you can see Ma Jiangbao doing the same sequence:
http://www.wutaichi.org/sample_lesson_1.asp There are five pages - 'Preparation' to 'Single Whip'.
I guess I have to commit a mixjourneyman here by saying that this is not orthodox Shanghai branch Wu style
I base my opinion on the fact that there is a high degree of uniformity and agreement amongst the students of Wu YingHua and Ma Yuehliang. Another point is, that over the years I have identified many "marker movements" in forms from various lineages that tell me from what lineage they come from. Your form seems to be a mix between the Man Quan from Shanghai and the Square form of Wu Gongyi. The Single Whip is done like in Cheng Tin Hung's Taiji. I could detail this for you if you like. But most probably I'll find myself on your ignore list after this posting.
CD