The choice of college matters, but to be approved for a study permit it is most important to show sufficient ties to your country, funds to pay for your studies, and reasons why a Canadian degree is relevant to your career development. How will improve your job prospects back home more than a local degree? What is your age and previous education?
I see from your other post you are from Ghana. Do you have family, property, or business there? Applying from a country you aren't a citizen of (in this case Ukraine) hurts as it makes it harder to show ties to your home country.