Might change later depending on how things go, but right now I'm quite content with it.
The glasses were not done with perfection in mind. I just went with the flow and wanted to get it done. I'm still learning this stuff and didn't have that much patience.
The base pony was made with the Pony Creator. The cutie mark was manually added by me. (The dolphin is a heavily modified clipart.) It represents the high frequency transmission of Dolphin characteristics like playfulness, sensitivity and zest for life. (I drew the sound waves freehand and they turned out so well!)