Seems to me there's a similar mural somewhere around Quincy and Woodhill. Something also on the verge of the fantasy realm, (a dragon?) with a long poem. I think the fly agaric mushrooms were in this one too, but I could be very wrong.

Have you seen the mural at the "Babe Wash"? Different kind of fantasy. I can't quite remember where that one is either...

Laura commented on the Woodhill Quincy mural saying that it was by Sano. This looks like his work, too. He moved to LA.

Considerable People Sano, Mural Master by Adam Skolnick  

Sketch. Fill. Outline. Highlight. This four-step approach lifts Sano into a Zen state where the battle scars of a struggling artist  — fade beneath paint clouds. In the past two years, he has collaborated with fellow artists on numerous “mostly legal” murals on buildings, retaining walls and freight trains throughout the city. The gritty yet positive images he gilds, such as a Hiroshima girl emerging from an atomic haze (GV4:Basic Techniques for Creating Graffiti Art on Walls and Canvas), “is my perspective on the truth,” says Sano. “Hopefully it helps people see that graffiti is not just gang tags.” 

Sano, who was born in an eclectic Cleveland neighborhood sandwiched between a ghetto and an arts district, grew up during graffiti’s golden age. “The ’80s was the Wild Style decade, when ‘writers’ distorted letters into urban hieroglyphics,” says Sano, who took on his moniker in 1985. “I thought it was a pretty abstract set of letters and thought I would define it as an acronym, now meaning ‘Simple Art Nice Outlines.’ Sometimes I write it in kanji [Japanese script] and it means ‘spiritual ground’ or ‘essential foundation.’” He counts old-school writers Vulcan and Kase 2, who were among the first to turn NYC subway trains into canvases, and European masters Klimt and Cézanne as influences. 

After gaining local notoriety by organizing Cleveland’s first hip-hop conference and graffiti workshop at the Rock & Roll Hall of Fame, he moved to L.A. “to paint outdoors year-round.” To make ends meet, he also endeavors in graphic design, teaches graffiti workshops, including a recent seminar at SCI-Arc, and he was featured in Bob Bryan’s acclaimed film series, Graffiti Vérité. After 20 years of guerrilla art, Sano remains inspired: “It feels really good to paint big on any surface — wall, canvas or train. To put your ideas out there that big, that fast, is definitely a rush. It’s almost euphoric.” 
(Photo by Wild Don Lewis) 

  But I know who to ask---I will get back to you.  But, really, can I say that I hate graffiti art?  Will I become uncool for saying so? When you live with it, it's not that exciting or edgy.  It's just noise.

Yes, the two murals - the one above and the one off Woodhill/Quincy - both have the mushroom motif and, could be by SANO,   The Woodhill piece could be 10 years old, but the Euclid car wash scene looked only a year or so old. 

What I read on Realneo about SANO, he hasn’t been around Cleveland for a decade – or does he visit from time to time and still need a color fix while he’s here – so he blasts off some anonymous lacquer. 

This is not a SANO mural. From the looks of the signature or tag in the lower right , it says CEPSONE. The whole wall looks to be done by him and would be the largest piece around that area. I don't think it was commissioned but i've seen other impressive work produced by him.  Just wanted to give credit where credit is due.