Why do these dragon pictures include people for scale, anyway? When the same creature can be anywhere between dog- and whale-sized, it seems kind of pointless.
Anyway, green dragons: breath weapon is corrosive vapor, which seems redundant with black: I'm glad they changed it to poison gas in later editions. Special movement is a decent swim speed, and its extra skills are Bluff, Hide and Move Silently. The first is decent, the latter two would be better if green wyrmlings were Tiny: as it is now it's usefulness is reduced.
Surprise surprise, these things suck. 2d6 acid damage isn't cutting it at ECL 5, and neither are the natural attacks. -0 LA.
Size increase, breath weapon damage increase... I've seen it before, and it's still weak. -0.
I could remove half the RHD and this would still be underwhelming. I'm not even kidding.
Let's take a moment to reflect on what else 14 levels could've gotten you. 7th-level spells or maneuvers, 8d6 sneak attack, a bunch of opened chakras... Instead there's 1st-level sorcerer casting, a few ability bonuses, and poor flight.
DR sucks, yadda yadda yadda.
At this level, 3/day Suggestion is gained. Wizards are casting Dominate Monster, clerics are casting Monstrous Thrall, even fighters have better mind-affecting abilities available than dragons do by now.
Here be suboptimal dragons!
I dare you to come up with at least one epic challenge that can be solved with Plant Growth.
Seriously reconsidering the idea of doing all dragons right now. Maybe should I just rate the first three, then briefly mention that all past there is too bad for a LA?
Congrats on being gargantuan, and it only took 32 levels! It's not like there's ways to do it faster, are there?
If I didn't dislike dragons before, I did now.
When a ranger gets a certain spell before you do, be worried.
When a ranger gets a certain spell at half your ECL, be very worried.
When a ranger gets a certain spell at one-third of your ECL... run.
SpoilerI find it very amusing how conversation is now about what dragons won't get a -0 LA.