We have now modulated to the dominant of the original key which is E.
The parts which will require the most practice will be the slurs with the left hand. As always, slow methodical practice will yield the best results. Be very careful with bars 36 and 37 as it may require you to put some practice overtime in with those sections.
Remember that the important thing when performing pieces of this nature is to maintain a feeling of elegance. Be sure not to 'bulldoze' your way through it as you will lose all of the stylistic nuances that a piece like this needs in order to be played in the most effective way possible.