^^lol first off i bet you don't hun. i think you're just underestimating yourself
and second i thought the same thing when i started. just keep practicing. even if you don't post the siggies in creation gals practice makes perfect! I would literally just get random pics and blend them tgther to get the practice!
Also PSDS AND TEXTURES AND TEXT those are what make a siggie stand out (well to me it does). If you have a great psd and use nice textures (don't just randomly place them around but arrange it so it correlates) then it would make a sig flow :D
also text- use a bunch of different fonts! Don't use the ones that come wt your comp but download some and just experiment
That's what i did lol. but i'm still not super amazing at sigs but i guess i've gotten better wt all the practice and just with the more info i've gained!