Well done for your practice on Senwa and Hydom. You can all play it brilliantly, the concert is going to be great.
Over the holidays if you would like to carry on with some practice, here are some suggestions to keep your fingers busy:
Finish learning Jingle Bells using 4th fingers
Finish working out Beethoven Boogie (rhythm words first, finger numbers, note names, (pluck), play)
Revise G/D/A/E arpeggios
(G = 0g 2g 0d 3d D = 0d 2d 0a 3a A = 0a 2a 0e 3e E = 1d 3d 1a 0e)
Enjoy making up some music of your own