Yes, the first note in the arpeggios should be a bit heavier so that the key changes are apperant. Also, you may want to make a slight hesitation after those low bass notes and enjoy the sonorities. Not a huge hesitation, but in this section it shouldn't be perfectly metronomic either -- smooth, articulate and expressive, moving forward so we stay interested, but it's ok to take a split second to enjoy the bass notes (provided you pick up the slack with the remaining arpeggiated notes).