Watermelon as military HIMARS vehicle with epic weapons, launching rockets on a battlefield, russian city as background.  Concept digital 3D art in style of Caspar David Friedrich, Less watermelon more  military HIMARS vehicle. Rendered in unreal engine 5, artstationHD, 4k, 8k, 3d render, 3d Houdini, cinema 4d, octane epic RTX volumetric dramatic light