I really like your character descriptions, and how you portray the complex relationship between the brothers.
The story itself could probably have used a bit more editing---typos, capitalization issues, mismatched verb tenses, and fragmentary sentences made it a bit hard to focus on the story itself. Also, while your brevity is to be applauded, varying your sentence lengths can be very effective in making your writing more engaging.
But your use of reflection to draw out the relationship between the brothers, and the development of the story itself, were both very well done!