Looks to me like a normal 1988 reverse on the last two. The first is hard to tell. Basically if the part of the G that's supposed to be "boldened" will extend further below the base of the G.
Personally no I don't think it has the 89 reverse, but if you could get clearer photos that would be easier to tell for certain.
I don't see an '89 reverse on any of them. Die polishing before the dies are put into use will affect the strength of the initials.