img1 = Import["...\hand1.png"];
img2 = Import["...\hand2.png"];

Gimg1 = Graphics[Inset[img1, {0, 0}, {199.5, 141.5}, 400], PlotRange -> {{-199.5, 199.5}, {-141.5, 141.5}}];
Gimg2 = Graphics[Inset[img2, {0, 0}, {199.5, 141.5}, 400], PlotRange -> {{-199.5, 199.5}, {-141.5, 141.5}}];

Show[{Gimg2, Gimg1}]

Show[{img2, img1}]