I am putting together an ornate logo using TikZ. The logo as it is currently is as follows:

I request assistance on handling the lowermost outer text (which reads "UNIVERSITY OF GLASGOW"). For the purposes of easy legibility, I would like the text to be inverted with respect to what it is now. I'm relatively new to TikZ and I'm not sure how to approach the problem.
Comments on improving the code generally also are welcome. The code is as follows:
\documentclass[11pt]{scrartcl}
% TikZ
\usepackage{tikz, pgfornament, tikzrput}
\usetikzlibrary{decorations, decorations.text}
% font size
\usepackage{fix-cm}
% cryillic font
\usepackage[OT2, OT1]{fontenc}
\newcommand\cyr{%
\renewcommand\rmdefault{wncyr}%
\renewcommand\sfdefault{wncyss}%
\renewcommand\encodingdefault{OT2}%
\normalfont
\selectfont
}
\DeclareTextFontCommand{\textcyr}{\cyr}
\def\Eoborotnoye{\char3}
\def\eoborotnoye{\char11}
\def\cprime{\char126}
\def\cdprime{\char127}
\begin{document}
\begin{tikzpicture}
% outer circle
\draw[line width=2 mm] circle[radius=7.4 cm];
% inner circles
\draw[ultra thick] circle[radius=6 cm] circle[radius=7 cm] ;
% outer text
\path[
rotate=-15.2,
postaction={
decoration={
text along path,
text format delimiters={|}{|},
text={
|\Huge|
{\pgfornament[scale=.4, ydelta=-9 pt]{15}}
UNIVERSITY OF GLASGOW
{\pgfornament[scale=.4, ydelta=-9 pt]{15}}
OFFICIAL DRINK PARTICLE PHYSICS EXPERIMENT
},
text align=fit to path,
reverse path
},
decorate
}
]
circle[radius=6.2 cm];
% top ornamentation
\rput{-30}(2.5, 4.2){\pgfornament[scale=.4]{87}}
\rput{30}(-2.5, 4.2){\pgfornament[scale=.4]{87}}
% bottom ornamentation
\rput(0, -2.5){\pgfornament[scale=.7]{75}}
% right ornamentation
\rput{-90}(5, 0){\pgfornament[scale=.6]{72}}
% left ornamentation
\rput{90}(-5, 0){\pgfornament[scale=.6, symmetry=v]{72}}
% central text
\node[font=\fontsize{35}{60}\selectfont] at (0, 2.5){P.P.E.};
\node[font=\fontsize{60}{60}\selectfont] at (0, 0.5){{\cyr k v a s}};
\node[font=\huge] at (0, -5){MMXII};
\end{tikzpicture}
\end{document}
many thanks for your assistance
