At first sight a very nice picture. You, of course, intentially used the DOF for the effect. Nice subject, there seems to be something in the distance, they all look intence to the horizon, the only thing that's a pity is the top of the picture. Some things are missin there, or are half visable. I understand, boys get exited while parades pass by but think of the top and bottom....
Not my kind of thing at all, but a good photo. The shallow DOF works really well & good comp. Its got a hotspot on his beard, which I'm sure you noticed already. I love mr tweedledum at the head of the soldiers! H:)