Flow of Purchase Order with Landed Cost Voucher

I have done the following:

  1. Created and Submitted a Purchase Order.
    1.1 The Purchase order has purchase taxes
  2. Created and submitted a Purchase Receipt.
  3. Created and Submitted a Purchase Invoice.
    3.1 Pay the invoice
    3.2 Add the landed cost voucher to the purchase receipt and submitted.
  4. Create a Purchase Invoice to pay for the landed cost voucher

My Purchase order is for 3 items at $4 each: Total $12
Taxes are 15%: Total: $1.80
Landed Cost Voucher: $15

But after this all seems done:

How is actually the flow?
And what Accounts will be affected?