That is excellently done! The few marks left would not bother me at all and learning to restore by hand is a good approach to get a feeling for restoration without the risk of damaging the blade. Now give it some time with steel polish and/or jeweler's rouge and the colour of the shine should improve a lot, I think you'll like it.

As for the Dremel, I use mine with great results, but it's also the easiest way to ruin a razor or send it flying through your shed. If you decide to buy one, make sure you read up on its use first!