Hi there Valcos. My favorite aspects of your map are the sea and the torn parchment borders. As for the land forms, there seem to be allot of rounded corners, which doesn't quite look right to my eyes. I'd suggest spending some time looking at the shape of the Earth's land masses and then working on trying to emulate similar land mass shapes in your own maps. All in all though, pretty good for a first shot!
Cheers,
-Arsheesh