@1st image - Good work I like the splatters my only work of advice is remove the drop shadow and try something different.
@2nd image - Increase the size of the little text as its abit too small, maybe add some tears on the boys clothing and add a few more shades to make it more realistic and mayb even teared skin on his face, decrease the oyter glow opacticy its way too powerful. If you do do any of these suggestion remove some of the blood added as theres way too much. Ahh last of all the hair needs to be re-rendered as it seems rushed or you could duplicate the boy layer and add some motion blur to smoothen up the edges.
Overall really nice aimges just need a few small touch ups ^^