Rewards for long term players

I propose an idea where rewards can be unlocked based upon number of wins, both in ranked and normal games. For example free unique skins can be unlocked when 100, 500 and 1000 wins are reached. I believe it will allow for a sense of progression after level 30 is reached especially for those who don't have the time to commit to ranked play. It will also offer motivation for those stuck in "elo hell" as they can work towards reaching a number of wins, while climbing tiers which can be stressful and unrewarding. This addition will bring about a sense of commitment for long term casual and professional players as unlocking unique skins will bring about bragging rights, displaying a players experience of the game and thus their knowledge as a player.