It looks good, my style...
but it also just looks like you put a background behind the tori and that's all...
maybe try something a little more detailed...
also you forgot about the background...
try maybe 2 avvy's a better version of that tori (love the pose) or maybe a GIF
and for the siggy could it be something like a big text of my name with my tori (laying down, sitting, climbing, standing in front) of the text then just add some snow or lightning or something to that