Would someone check my work here?

I think I have accurately defined Stamp #1, #3 and #4 (which was discussed in a separate thread).
What I'm not sure about is Stamp #2. Is it merely a color variety of Stamp #1 and should be designated as a #498? Or does the appearance of a more green shaded face reveal yet a different catalog variety?
Nothing of any great value here, but I've had these similar stamps sitting in a stockbook for way too long and have just gone through the trouble of trying to identify them.
Thanks.