Billy Crystal - Pixel Challenge

Okay, so this isn't exactly what they had in mind, but when I saw "crystal" as the weekly challenge theme at I couldn't resist.

About 7 hours total
15 colors excl. transparency
Photo off Google used as reference

You can see a WIP here "BCrystal WIP"
Pixel Challenge Week 17Hello and welcome to our 17th week! Thank you for participating!  

This week OurDreamsWillCome will be co-hosting with us.
Don't forget about our rules here: arichy.deviantart.com/journal/…
Please share some love to our past week participants!

A Very Cheesy Valentine by HoneyDipplyValentines Day 2k15 ( GIF) by mi-rikuGift and Pixel Challenge by ChipiyLove is in the air by Himitsu-Sekai
Theme of this week: Pixel Crystals!
You need to make a pixel artwork to look like it is made of crystal. It can be as simple as a crystal gem, or crystal ball, or extravicant a crystal person or city, but you