Briefly
Op.10
N.1 is about arpeggio and broken chords
N.2 focus is mostly on chromatic melodies
N.3 focus is on melodic rendition and sixths
N.4 focus is on hands independence and alternation
N.5 focus is on black keys playing and hand positions and irregular rhythmic groups
N.6 focus in on melodic rendition and counterpoint
N.7 focus is on sixths and thirds
N.8 focus in scales and arpeggios
N.9 focus in on stretches, octaves and large intervals
N.10 focus is on rhythmic challenges
N.11 focus in on wide arpeggios
N.12 focus is mostly power and octaves
Doesn't 10-7 also cover repeated notes with 1-2 fingering?
Also, I believe 10-12 is an etude for the LH, focusing on scalar movement.
As for Op.25, I only know a few for sure:
No.1- Broken chords
No.2- Polyrhythm of 6 on 3
No.3-
No.4- Staccato, LH jumps
No.5-
No.6- RH thirds- scalar and chormatic minor 3rds
No.7-
No.8- RH sixths
No.9-
No.10- Octaves
No.11-
No.12- Hand shifting, I think.
Phil