Okay, The main "explosion" c4d is plastered on with no blending at all, it sticks out terribly. You've got background blurring but overall the stock is random overall with depth, that ought to be fixed up, there's not really much to say, it's a stock with a c4d and some very "meh" text.
Need to work on your composition and effects. It looks flat because of the colors, so they need work as well.
