Nice chart...
Another one for my collection.
For one thing, you must look at the book in the context of the time to see some things. For example, in the days of the writing of the book, there were kings, and no TV. So when the king made a proclamation it was not on prime time, it was done by blowing a trumpet and reading the proclamation in the public square. The blowing of a trumpet or shofar was a sign that the following was a Royal proclamation.
So...
The trumpets are announcing the bowls of wrath. They go together.
Seals also were placed on a legal document, by breaking the seals you were “activating” the document. Once all the seals are opened, the contract is valid.
So the timeline is not seals...trumpets...bowls...end it is seals...end
If you look closely the last seal is the declaration of judgment of God, the last seal is the trumpets and wrath together.