Don't worry about it, now that you have had a taste of how vivid they can be you know what to expect, maybe when you next have a longer lucid dream try increasing the vividness, it is most likely that this one was so short because it was so vivid and clear, in the next one you have try and experiment because if you can get the right combination you will likely be able to get long vivid lucid dreams, best of luck to you mate