In answer to your general question, will FAA print scanned film images, the answer is yes. Before I put down $30 for premium membership I had them make a 24" print of this one, which was originally shot on 35mm film, and it came out beautifully.
As to your two images, maybe not. They're very low resolution and have some noise. Beefcake is awfully grainy. Neither will print very large due to their low resolution. My example above has a resolution of 5617x3262 pixels. Yours are only 1813x1225. Mine is more than 8 times the size of yours. (Not bragging or anything.)