It's the rainbow dragon, from the game Dragonvale!
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for those of you who don't know what the "dd" in my titles stand for, it means "daily drawing"!
i do a daily drawing series where i draw digitally every single day. if you click on the "click to view" link next to "based on", it'll take you to the daily drawing from the day before!
here's the first one that i did c:
if you'd like to do a daily drawing of your own, feel free to! i take no credit to the idea, it goes to cryptid-creations on deviantart.