I got started with Maya through Photoshop projects too, strange how that happens!!

It's not a bad start, but rounding the edges would be even better (hint: bevel tool). It would also be very nice to see the numbers raised with a bmp map. There's loads to learn but there are also loads of realy good tutorials out there to help you (the Maya f1 help menu is indispensible).

Keep at it,

Mat.