The release of these particular tax returns actually make Trump look completely normal. He made some money. took advantage of the tax laws and paid what he owed. What I'm curious to see are Trump's conflicts with countries around the world where he was complicit with rogue countries such as the piece that appeared this week in the New Yorker. The Trump organisation was involved in a hotel project in Azerbaijan that really was a money laundering scheme for the then corrupt Azerbaijan politicians. 
I'm confident that this was not the first project where the Trump brand was used to help a corrupt country. This is why Trump has to release all of his tax returns showing his conflicts of interest where the United States has sanctions. I'm also confident that Trump has massive conflicts in Russia with Putin. This is why politicians have to divest themselves of their businesses while in power. Trump has not done this whatsoever. Trump has fooled no one.