Uploading photos from your Windows Phone to SkyDrive can be a pain, especially since full resolution photos are resized when sent to the cloud. This is presumably due to Microsoft taking measures to optimise transfer for those on tight data plans who may not be connected to a WiFi network. While perfectly understandable, it would make sense to have this option in the Windows Phone settings for the user to configure how they'd like their photos uploaded to their SkyDrive account.
For now there's a workaround of sorts. Unfortunately a Windows PC is required with Zune installed, sporting an active Internet connection, and of course the native SkyDrive client for Windows. Luckily, Microsoft has developed sturdy software enabling Windows users to access and synchronise their SkyDrive storage locally with a smart folder set on their machine. This is what we'll be using through Zune to automatically upload photos from the Windows Phone to the cloud.