On getting reviews for research work as independent learners
You want to try a combination of networking and learning how to ask good questions.

Networking—you have to find people in your field in order to grow, and you can only find people in your field by networking appropriately. Try to find money in the department/broader university to attend a conference, or even just email authors of papers you cite. Describe your situation (briefly). If they're local, ask to meet with them for 30 minutes-1 hr; if not, try for phone calls.
Do note that, generally speaking, graduate students/postdocs will be more willing to give you time than advisors; try to get in touch with them as well.

Asking good questions—you can and should assume that no one has time to act as your advisor. Because of this, your interaction with those whom advise you will be brief. Make the most of those minutes. Give a summary of your work, ask very directed, substantial questions. Make the most of your meetings.


Personally, the most productive meeting I had in the entirety of my just-under-five year graduate school stint was one with a member of my thesis committee, and the entire meeting lasted 15 minutes. I gave the right background, asked the right questions, and came away with what turned into my thesis project. (I don't think I've done that well since.) Do your homework, and you may benefit nicely.