Little questions
The image you have is Norn cultural T2 armor, without gloves or helm, and wielding double Incinerator.
Welcome back!
As Nemo.5609 said, that’s Norn cultural armor. For steampunk-ish human armor, have a look at the aetherblade stuff. (https://wiki.guildwars2.com/wiki/Aetherblade_armor_)
The state of the meta depends upon several (often subjective) factors. You may want to visit metabattle and peruse the most popular builds to form your opinion. For class specifics, I recommend you visit class specific forums.
From my perspective, consensus has been that neither engineer nor thief is not in a good place atm. There are dissenters, but their elite specs really didn’t get a power-creep like most other classes’ elite specs. Ele is always DPS king, even if their elite spec isn’t all that the player base wanted. Guardian elite spec is good in PvP and they’re pretty versatile for other game modes. Necro elite spec is a lot of fun, IMO.
Thank you for your help!
Sadly it’s a light armor skin, so not available for engineer (Which is the most steampunky class imo).
I’ll go for either the aetherblade of the other steampunk skins then!