I think Aston Villa and Dortmund have no chance of qualifying for the next round... About Inter vs Bayern and Madrid vs Arsenal it's really hard to guess the winners... Although Madrid have a lot of experience of playing against English teams in the UCL, I think they will have a better chance of winning... Although I don't rule out surprises in these matches...
Football is unpredictable and while Aston Villa and Borussia Dortmund face tough opponents, upsets are always possible. Determination, tactical discipline, and individual brillance can play a crucial role in securing unexpected victories. As for arsenal while they have shown significant improvement under Mikel Arteta, competing against a team of Real Madrid's caliber in the Champions League will be a massive challenge.