this is a good start, but some quick pointers: always shoot perpendicular to the glass. this will minimize distortion from the glass, itself. also, it looks like you may have been shooting handheld. do you have a tripod? you will greatly increase the sharpness of your images by using a tripod. Also, you can close your blinds on the window, and it will minimize the reflection. The less light coming through the window, the less reflection you'll have. good luck, and keep shooting!