I agree that it is a little blurry. I tried to fix it, but to no avail.
The spray pic is not the actual size of the spray. The spray in-game is 256 x 256. Look closer.
Also, there isn't anything I can do about the speed of the spray. The spray file size limit keeps you from adding more frames. I would have slowed down the spray pic, but again, I was limited to the file size that I can upload.