She came up with her own artist name: MehMeh (pink and blue was her choice), but she can't write it yet. I'll sign a SHA256 hash for this and all future artwork from 1MehMeh1Nwr1woiqzji1GZWDqezow2kVVr (not meant for payments) to prove it's authentic MehMeh art.
I'll use this post for future reference for the address.
Full disclosure: I made a template so she could draw the BTC-symbol on her magic scratch pad. The rest is all hers
I'll use this post for future reference for the address.
Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
4f8d74f0e861267ea92bf4f62897d9bbe6fa53eb7f573342726c8257a4d05bbf 1Mehmeh1.jpg
Signed November 1, 2019.
-----BEGIN SIGNATURE-----
1MehMeh1Nwr1woiqzji1GZWDqezow2kVVr
HFRKdS/tT3FAYk0uMMPNe4D8oPFxj34hkNZ3EFLxuBvvDhnrCcY/SGxfqeyJiB97A5xOEIEOowA820yUi5mkyCE=
-----END BITCOIN SIGNED MESSAGE-----
Click to verify!4f8d74f0e861267ea92bf4f62897d9bbe6fa53eb7f573342726c8257a4d05bbf 1Mehmeh1.jpg
Signed November 1, 2019.
-----BEGIN SIGNATURE-----
1MehMeh1Nwr1woiqzji1GZWDqezow2kVVr
HFRKdS/tT3FAYk0uMMPNe4D8oPFxj34hkNZ3EFLxuBvvDhnrCcY/SGxfqeyJiB97A5xOEIEOowA820yUi5mkyCE=
-----END BITCOIN SIGNED MESSAGE-----
Full disclosure: I made a template so she could draw the BTC-symbol on her magic scratch pad. The rest is all hers
Yesterday, I entered her artwork into the 10th anniversary art contest:
She calls it: Rainbow:
Approximate dimensions (exluding frame): 146x209 mm.
Approximate dimensions (exluding frame): 146x209 mm.
The top-right and bottom-left corners are slightly damaged from using tape. This was part of the process
And now it's for sale:
I think I'll auction her art in Collectibles, it'll be the very first MehMeh art ever offered for sale, which may or may not mean something 20 years from now 
This is the first time I do anything "physical" on this forum, so I'm a total Newbie here. If any of my auction conditions are unclear or non-standard, please let me know.
The auction is for MehMeh's artwork without the frame, that makes it easy to mail in an envelope (with some cardboard for protection). The frame has glass (not in the picture because of reflections) which would be expensive and risky to ship without breaking.
So to be clear: the auction is only for the black sheet with Rainbow colors.
Here's a chance to own the first Bitcoin artwork made by MehMeh:
Starting bid: 0.0001 BTC
Minimum bid increment: 0.0001 BTC
Auction ends exactly 1 week after I post this topic. If there's a bid within 10 minutes before the end, the auction closes 10 minutes after the last bid (the end-time can move more than once).
Payment should be send to 1GirL11brFGXcAS6J72Z4Nnei5SMDD4FM3 (MehMeh's own long-term cold storage) within 48 hours after the winning bid. Shipping-by-envelope (unregistered mail) is on me. I'm not ready to DOX myself, so I'll send it without return address. There's a risk it gets lost in the mail though, I've never tried this before but I guess odds vary per destination.