I really like the blue background for #53, the 02 would look better without the squiggly below it - same goes for #54. Some small traces of yellow would be nice to see...
For entries # 89 and # 54...like them a lot, but can you try them with the words generation oxygen centered under the g2? so, in other words...instead of always having the g2 (which I really like) flush left with the words to the right, try a centered concept please. thanks!