\documentclass[border=10pt]{standalone} \usepackage{smartdiagram,bm,physics,tcolorbox} \usepackage{tgchorus} \usepackage[T1]{fontenc} \usepackage[version=4]{mhchem} \begin{document} \begin{minipage}{\textwidth} \centering \begin{tcolorbox}[boxrule=1mm,width=0.70\textwidth,colback=green!20] {\Large {\bf Hierarchy configuration interaction (hCI)}} \end{tcolorbox} \smartdiagramset{ font=\large, text width=5.5cm, set color list={green!10,green!10}} \smartdiagramset{module x sep = 6.2, back arrow disabled = true, uniform arrow color = true, arrow color = white} \smartdiagram[flow diagram:horizontal]{ Excitation degree $e$\\ Seniority number $s$\\ Hierarchy parameter $h = \frac{e + s/2}{2}$ \\ \includegraphics[width=1.0\textwidth]{table_hCI}, Dissociation of \ce{F2} \\ \includegraphics[width=1.0\textwidth]{plot_pes_hCI.pdf} } \end{minipage} \end{document}