Notes & Combos
It's my 1st Master 1 with Galaxy Photon after previously reaching it 3 times with Blue-Eyes.
The deck's combo lines are not linear, so you need know and remember which card you can still play (since most of them have once per turn's effect, and your precious normal summon is limited). But, the most common idea of playing the deck with the new support would be to dump Photon Jumper to GY and use its effect.
Search/Mill priority of some cards (in order of the importance for most of the time, can change depending on the situation, which may need some experience with the deck):
Photon Jumper: Hundred, Trance, Expedition, Hyper Galaxy, Numbers Last Hope
Galaxy Hundred: Jumper, Emperor, GEPD (if you just need to OTK with Trance)
Galaxy Wizard: Hundred, Trance, Expedition, Soldier, Afterglow, Hyper/Last Hope
Replays
The replays (with gameplay explanations on the combo as well as the match ups against other decks) : https://youtu.be/5OQCJxMynxk.
The explanations for my card choices and alternative cards are on the description of the linked videos.