documentclass{article}

usepackage[svgnames]{xcolor}
usepackage{tikz}

begin{document}

begin{tikzpicture}

 foreach x in {0,...,5}
    draw [DodgerBlue](x,-1) circle (0.25);

foreach x in {0,...,5}
    draw [-latex,red](x,-1) -- (x,-1.5);

foreach x in {0,...,5}
    draw [-latex,DarkGreen](x,-1) -- (x,-0.5);

draw [ultra thin] (5,-0.5) -- (0,-1);

end{tikzpicture}

end{document}