Hmm... that doesn't bode particularly well. While it does seem to have a fleet, they seem to be sailing almost independently of the embarked land forces behind them. At least the combat fleet seems to be in some kind of formation, however, that alone should make naval combat more interesting.
Did something happen to Austria that sent it on that CS spree, or is this something you reckon we should expect to happen when facing her?
She wasn't at war yet. Also embarked units simply can't be run over - even if your melee ships manages that, it will lose all movement points and then be sitting duck for that fleet there.
Also yes, you should expect her to buy off all the CSes in a game and then turn them into production cities, which may prove problematic if you are at war with her and are relying on city-states to protect your flank or whatnot.