Yes text is bad and border is huge but all of your sigs seem to have this thing where the are all the same design across the sig. Try to change it up a bit within the sig and create more of a contrast and focal point which all of your sigs seem to lack. To me you hae all the basic sig making "tools" down it's just the artistic sense that is lacking. Use some of the things that you learn in any art classes you have taken even as simple as primary colors or a focal point. So to sum it up, the design is all too much alike within the single sig (not across all of your sigs, not saying all of your sigs look the same) change up come of the effects, have a better focal point and light source, and lastly choose a good contrast of colors.