Welcome to the forum!
So far, we know very little about you, so it is difficult to give personal advice. (You may consider to put some info into your profile, like many others have done. That can be very helpful.) Therefore, the answers you'll get will generally be based on the repliers' personal taste, which may not harmonize with yours. However, I think you will be able to find the best answer yourself by asking yourself a few questions.
Whether you should keep the boots or not is a matter of:
- Personal taste. (Do you like brown, and do you like slim heels and pointy toes?)
- Comfort. (Are you able to walk comfortably in these boots?)
- Versatility. (Do these boots look great with many other items in your wardrobe, and are you able to use them for several occasions?)
Also: Try to express to yourself and/or the forum the exact reasons why you are in doubt.
