Hey guys I hope you can help with my question. So, I'm finally ready to upload all my photos (30GB) from the past few years from my MBP to iCloud photo storage. I will also keep the originals on my MBP for the time being. My question is how will this then transpire on my iPhone and iPad. I do understand that thumbnails will be available across all my devices. Specifially what I want to understand is what happens then when I find an image I wish to look at from years ago on my iPhone. Does it download it to my phone from iCloud in its original size? If so, my worry is that I will soon run out of space on my iPhone. Any help, greatly appreciated folks. Cheers!