Poetry is a tough art to critique, because it's extremely personal, making it very subjective. In particular, given the modern forms tend to be rule-breaking, it can also be hard to judge, even on a technical level. It's also not a commercially remunerative artform, so even the feedback of the market doesn't tell you much.
With all that in mind, your best bet for feedback is a local group of people passionate about poetry. Most communities have these, if you look hard enough for them. Poetry is intrinsically an oral art, so participating in live readings will help you improve as a poet anyway, but you'll also get feedback both from your audience and your peers. (It is possible that you might be able to reach out personally to some poet who might be willing to offer advice, or even mentor you, but going through a poetry group is probably a more reliable route to that than a cold call or email.)
Keep in mind that different poetry groups (and different poets) may have their own styles and preferences. If your poetry isn't a good match with the group you've selected, they may not appreciate it for reasons that have little to do with quality.