well, nice pic...all the defaults are visible. In disorder I'd say:
- drill a hole in your guns
- be more precise (see the red spots ont the left horn, top ?)
- think of "harmony" for your colour scheme: gold and red are Ok but why did you use purple? or even green? Two bright colours on the same mini is nearly too much, use neutral colours (black, greys, metal) and use green only for the eyes in order to catch attention on 'em
- your gold is too plain, seems like there's no shadowing (maybe chestnut ink, not sure)
hang on! practice will help a lot