Your analysis is good but based on my experienced and analysis on ethereum it's still follow on the move of bitcoin in other words if bitcoin will go down right now ethereum will also follow this is the power of bitcoin, but yet its a good move for ethereum to hold the $180+ level.
Well it's true that bitcoin and ethereum will always be correlated. Maybe @OP got good news about ethereum from its analysis but @OP only did a single analysis on the pair. Even though ethereum charts shows good but bitcoin chart shows opposite, ethereum will not be able to fight bitcoin because they are correlated.
Like the picture below, maybe yesterday ethereum chart was good because the state of bitcoin had broken resistance but now situation has turned back and let's look at the next situation.
