1. Yes, you are due compensation because you experienced a cancellation. However, because your departure time was within an hour of the schedule, and you actually got home faster, it's capped to 50%.

2. There is no additional compensation due to you as long as you were seated in the same cabin (i.e. Economy, Premium Economy, or Business) in your replacement flights. If you had a paid seat assignment on any sectors on the original ticket, you can claim a refund for these. These payable add-ons (even if you didn't have to pay due to your status on the original ticket, but you would have had to pay on your replacement ticket) are not of any relevance as regards compensation; even if you had an "up-front" seat, or an "Economy Comfort seat", or an "exit row seat", or a "duo seat" on your cancelled sectors, but you could stuck in the middle seat in the last row of economy on your replacement flight, you have not further recourse to compensation for what you perceive as a worse seat on the replacement flight. The airline must only get you home in the same cabin that you were originally booked to travel in. The loss of lounge access is also completely outside the scope of the regulation. You will receive meals on your flights; the regulation says nothing about requiring to give lounge access and/or pay for meals on a layover too. (You could, however, buy lunch or whatever, keep the receipt, and lodge it as an expense and see if they reimburse you)