Hello, and sorry for the notable delay!
It seems that you have decent initial experience with your hospitality firms. It will help to focus on what you accomplished in these years for the hotels. Business schools want to see what value you provided the firm and what you were able to achieve, rather than what you did on a daily basis. What sorts of team or leadership roles did you have? What kind of difficulties and obstacles were you able to successfully address?
It's also important to identify which type of program will help you achieve your goals. Knowing that your focus is on marketing, rather than a financial MBA, you should look at programs that focus on this, and specifically in hospitality if that's something you would like to get back into.
Working at the NGO can definitely show variety in your profile, as well. Focus on what you've been able to do to help the community and why that is important to you.
Let us know what you think, and good luck!