The most important thing for any aspiring writer, is to read! And not just the sort of thing you're trying to write, be that fantasy, SF, comic books, whatever. You need to read everything.
George R. R. MartinLittlefinger: A trade envoy from Lys once observed to me that Lord Stannis must love his daughter very well, since he'd erected hundreds of statues of her all along the walls of Dragonstone. Tyrion: My lord, those are gargoyles.
George R. R. Martin