1. 300 x 225 px, transparent background, plain

2. 300 x 225 px, transparent background, reflect

3. 400 x 300 px, transparent background, plain

4. 400 x 300 px, transparent background, reflect

The logo has been deliberately shifted a little bit to the left in order to correct the optical right-shift. So geometrically it is not centered, but optically.