Why won't iCloud let me transfer my photos?

I bought an IPhone 6 today a few hours ago and I first signed into my own ICloud. Later I connected it to my laptop to transfer some files and it said something like 'would you like to restore your data' and I clicked yes… So then it automatically signed into my brother's ITunes Account (he used my laptop for it once) and all the pics from his iCloud came on my phone… I managed to sign his account out but the pics never left. I had to delete all of them but the problem is iCloud won't transfer my photos to my phone. All the settings are okay. I checked.

I have the same problem:/