Blunderbuss thumbnails

Here are a few thumbnail ideas for the blunderbuss weapon. The main requirements that the weapon has to have is the skull infused onto the end of the barrel, the glass bulb attachments on the stock. and runes and shapes decorating the weapon. So this is what i came up with. At first i struggled trying to get the skull to look right on the weapon as it made the barrel look really weighted at one side, so i beefed the guns up a bit, and even tried to infuse the skull into the gun by having metal pieces clasping onto the skull. I like the edgy sharp parts to the designs, i also really like the stock for design two.  Next ill take the design i like or take different elements from different designs to start blocking out a 3d base model.