Ok, another update since yesterday.
Today I made a new design, printed and transfered it to a copper board. Worked beautifully this time, it seems I haven't applied sufficient heat last time, this time I was able to achieve a pretty good transfer.
After that I spent almost an hour (!!) trying to peel off every single piece of paper that got glued to the board with an old toothbrush and window cleaner liquid. Is there any way to make this process quicker?
When I got my board all cleaned up, heated the ferric chloride I used yesterday on a water bath and in no time I had a PCB!
However I found that using acetone to remove the toner from the copper wires also stained the fiber material of my board, which is nothing more than aesthetics but I would love to see it a little cleaner (

), any suggestions on that?
Tomorrow I will drill the board, I will have to buy a proper acessory for my Dremel, I already broke 3 drill bits trying to drill the boards with a regular drill!
Here's a (crappy) picture of my new board:

Also a picture of the board I made yesterday, the toner transfer was not perfect so pieces of the copper got corroded:
