Though you may not stay here long, I wanted to wish you a welcome! It's good to know that our forum has reached you and I'm sure our members will be able to come up with and/or enable your new logo designs to get something to your liking.
If I may ask... How did you hear about the LGU forum?
If you're thinking of colors for your project 'look', now would be the time, since our artist can use them right away. For example, in the DVD Freddy drew, your 'colors' can be there instead of the light blue.
BTW, It's nice that you considered the artist and offered right away to recognize him/her in the 'About' window. That's classy.
So you're "trying" to learn Inkscape... look out boys and girls... we're going to have a new Master of Inkscape.
The 'DVD image' in your drawing is really nice, so is the 'film strip'.
JMO, I think combining the film strip (full 24x24) and enlarging the DVD (to the head area, sans the head), would look cool as a logo icon. A colorful DVD on the black film strip would stand out and be easily recognizable at small sizes.
I think your image rocks too, I like the concept of DVDs to pictures. Maybe the different colors have to be tweaked to stand out more?