This is quite confusing, isn’t it? I suspect you don’t have Plan 1, on the basis that the word ‘Plan 1’ doesn’t show on any of the license headings. At present, your ‘Plan 2’ trial would enable you to access MySQL (a premium connector) for the duration of the trial.
I imagine that your ‘Office 365 Enterprise E1’ subscription provides you with the primary means to access PowerApps.
What isn’t clear to me is where your ‘PowerApps and Logic Flows’ license comes from. Hopefully, someone at Microsoft can answer this, and also confirm your exact license entitlement.