They are standard length with graphite shafts. I like the clubs quite a bit. The biggest factor in any iron that I would choose is feel. I like to hit range balls, much more so than playing. I want the club to feel solid and the shaft relatively soft. I don't want vibration and a harsh feel.Buying an orange dot set doesn't always mean the lies are always set at orange dot specs. Have someone check the lie, lofts, lengths & swingweights on them so you'll know what the specs are. I've bent a lot of irons & have seen some bad OEM L&L specs. Mizuno being one of the worst. Off the rack clubs are massed produced and tolerances for L, L, L & SW are not a priority to be spot on.. Same goes for the loft on a driver. I've measured 8* drivers at 13* before.
Your orange dots show 2.25* flat. I'm gonna assume the lengths are .25 - .50 inches shorter than standard. Really surprised you went with the G series being a once 3 capper. G series is considered a forgiving iron with a wider sole & thicker top line. The heads are heavier also. Graphite shafts will offset the total weight but that head will still feel heavy. If you like them & they work, don't break it.
I could still play blades if I want to, and not be hurt too badly, because my misses are on the heel side of center. I never hit the ball in the toe. At my age, I like graphite because of the weight factor, and they seem to be easier on my arthritis. Steel feels heavy to me now.