If you ask someone for a critique of your work, then you should expect it to be based on their individual tastes. To expect someone to divorce themselves from their own work in judging yours is asking too much. At best, if they are a good teacher, they may be able to recognize what you are trying to do, maybe even better recognition than yourself. The onus is really on you to pick the individual who can best judge your work, possibly someone you admire for their work. A mentor, for example. I would not submit a portfolio for review to one of those pay-for-review sessions composed of some disparate group of photographer/artists. Their critiques will range from superficial to nit-picking.