Siggy Help

[Rika]

Something I created today at 2 a.m. after not sleeping for like 4 days straight o.O Think it shows the lack of sleep and rustiness..but anyways with hopes to switch it out of the signature I'm already using. Before I did that I was hoping if someone could help me blend the sprite a bit better. Staring at it..it looks all pixely and doesn't seem to fit in at all

So..yeah anything that can raise the quality of it would be appreciated :D