\documentclass[tikz,border=10pt]{standalone}
\usetikzlibrary{shapes}
\usepackage{tikzpeople}
\begin{document}
\begin{tikzpicture}
\node (student) [graduate, monitor, minimum size=2cm] {};
\node at (student.45) [starburst, draw=red, fill=yellow,
starburst point height=0.4cm, line width=1pt,
font=\ttfamily\scriptsize, inner sep=1.5pt] {error};
\node at (student.130) [cloud callout, cloud puffs=13, aspect=3,
anchor=pointer, shading=ball, ball color=darkgray,
text=white, font=\bfseries] {My thesis...!};