For the first time since he was critically injured
in a jet ski crash, Sean Kingston
has released a photo of himself on Twitter ... along with a message -- "Feeling alot better!"
Kingston added, "GOD IS GREAT! Thanks for all the prayers and support! Love you ALL!”
Based on the photo, it appears the "Beautiful Girls" singer has also been released from the Miami area hospital -- where he was treated following the jet ski crash last month.