i think its a bit too sharp and the use of white so much kills it slightly ^_^;; tone down the white splotches a little to fit the color theme and i think it'll look great great start though
The canvas is a bit small but that is not the main problem. The main problem on that one is really that some parts are oversharpened, so get your lbur tool and blur. The lighting is too weak, burn the spots where the light is not, like the downer left and right corners. The flow is pretty good but I would remove that text. And finally the border doesn ot fit it.