Hello Job, I just want to explain my original concept.
From the beginning I've submit magnifying glass with progress chart bar.
You know, the word SEO is identical with magnifying glass, then I put the chart bar with positive progress, this mean your company have a good mission which make a good progress from time to time.
I assume Zoo is same like a bunch of keywords, so I've try to make with popular animal patterns such as zebra, tiger, and giraffe. When people saw that patterns, people is directly know the animal.
If integrated with SEO, when people know the keyword, your company have a solutions how to make people directly open the website with keyword aim.
Maybe you want to consider my designs :)
Thanks
suke