In my opinion, I would like to see break up of 6,1k and 170 ETH/USD levels. That would be the long term signal.
When in recent past months the prices were above 6100 we were above that level, the bull market was still in place and well working. Then there was the break down of 6100.
Looking at the price action, my feeling is that the new bull market has started, but until we break 6100 up there is no certain complete confirmation.