Your fingering is right. Do you have small hands? Or are u holding the lower notes of the right hand ( arpeggios ) also when u play? Remember to let go of those notes, so that your hand is free to play the upper voice. There is only one melody at the top line... it`ll travel to the thumb occassionally. U can split the compound intervals if u can`t reach them, but remember to hold and emphasize the melodic notes. And most importantly, stay relaxed. U ought not get sore wrists by stretching. I`m thinking that u might have been too tensed, esp. at the fore arm and shoulder. Lower your wrist comfortably and drop your arm weight down.
5th May, 2017