I am trying to write music in baroque style. Are there places (on Internet) where I could get feedback on my compositions?
Any baroque music fan can provide feedback, really, and every classic musician is usually a good reference too. There is plenty of forums with classic musical as a topic in mind which I'm sure you will be able to find your general objetive.
Unfortunately, stackexchange is not meant to be a opinion based recommendation system not even for websites.
Hope it helps.