Two examples of simulated galaxies. From left to right: high-resolution image (UV emission), simulated HST image, simulated HST image of the same galaxy lensed by a LLAMAS cluster, and HST image of a real LLAMAS galaxy. In each image, the contours represent the Lyman-α emission. The orange stars show the location of the centroid of the UV emission and the pink circle the location of the Lyman-α centroid. The first row presents an example of spatial offset produced by an offsetted UV bright clump. The second row presents an example of a spatial offset produced by a faint UV component spatially coincident with a strong Lyman-α emission peak.