Hi There, the first of these images is good. The last two are dirty and damaged (respectively). We are trying to project an image of high-quality tubes, not things that are damaged. I do generally like plain designs, but when I saw this: https://www.freelancer.com/contest/Social-Enterprise-Graphic-Design-1044053-byentry-14615128.html I was converted. Spelling out the letters with tubes is very clever.