Both the scans of Maes and Roy came from various scans in the AP gallery.
I like each individual's pose and so extracted them and tinkered with how I would want to use both scans in one wall.

Since Maes and Roy are the "Dynamic Duo" of the FMA world, I wanted to do a more upbeat/cocky/good times wall as opposed to focusing on the more sober and reflective piece of the friendship.

I have seen this quote in various places and with various spins to it, but this is a version that I liked...that used appropriate language for a general purpose wall +^_^+

The motivation concept poster is similar to one I did with Inuzuka Kiba and Akamaru.

I created the sand dunes from scratch using various tutorials for reference, and decided on the desert backdrop since Maes and Roy solidified and strengthened their friendship on the battlefield (in the deserts of Ishval).

*EDIT* Re-did the sky--took away the clouds and went with more of a blue-hued gradient.

*EDIT* Fixed the typo of "freind" to "friend".
Thanks HeartagramElf for picking that up.