the lighting looks blown out and the material on the balloon just looks like a simple blinn. you could try adding some noise like a bump map or something. Also the specular highlight doesnt seem to effect the logo. are you thinking of doing some cloth to make it ripple a bit? do they ripple in the wind? i'm not sure. also are you rendering in linear? the backplate looks a lot brighter in the second image. Whats with the crazy resolution size btw? this was a basic texture test i tried using a bump map but apparently its not visible at that distance From my reference videos balloons dont look like i need to be using cloth simulations The high resolution is for a projector