The number 8 was made using Illustrator.
The symbolism backing number Eight deals largely with business, success, and wealth. This is primarily due to the fact that Eight represents continuation, repetition, and cycles. Such elements are seen in arenas where success is obtained simply because of dogged determination and repetition by the practitioner. Also, matters of business and wealth largely depend on cycles to fulfill their manifestation. It’s like the snowball analogy: As it continues to roll, in gets bigger and bigger with each revolution. From http://www.symbolic-meanings.com/2007/08/31/symbolic-meaning-of-number-eight/ (5 years and 2573 days ago)
7 Sources:
good job author!! 
Nice colors, good research
! Question about the waterfall: you made the offspring of it from the opposite angle of how the angle of the side of the 8 is. That's done on purpose (surreal aspect) or do I see it wrongly? Good luck!
Edit: changed
Thank you guys! Wazowski, the water is pouring from the big crack. Note that there is a big piece of layer peeling away... Oh, I see... It's falling on the wrong place
Awesome, I like all the cracks and the waterfall, and the color tones here, good luck = )
I think the answer to the question of wazowski about the waterfall is: the "opposite" angle due to the way of crack. Am I right, author?
I was able to express myself well? Sorry, my english don't help me sometimes!.
Nice work, author! Good luck.
Am I so used to optical illusions that I didn't notice this?
Fixed 
Thank you Daniela, I understood what both you and Wasowski meant, but what I did was to make the water come from the front outer surface and to fall on the bottom of the inner surface - that's impossible...
Oops, ok! I was wrong! You missed it! Hahaha ...
Much better now!
Ok, I saw the image before, and now it's way better. But, if we thought of its surrealistic side, it wouldn't matter which crack the water was pouring down from... whatever, it's a catchy work, good luck, author!
Congrats for making it to round 3
Congratulations for making it to the next round....good luck!
congrats
Thank you all people for comments and congratulations (v)
Howdie stranger!
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