I did Cambridge IGCSE's English 2nd language C Math w/o coursework A* Physics A* Chemistry A* Biology A* Turkish 1st Language A
Your A-Levels are perfect but your GCSEs could stop you getting in. Cambridge would be a very realistic option for you as they place more emphasis on A-Levels
Your a-levels are amazing, so you can apply to almost anywhere that doesn't look at GCSE's too much. Also you would have to take the UKCAT/BMAT for UK unis