While it's difficult to say for sure with just a "from the front" view, it doesn't seem objectionably short to me. Particularly given the current fashion trend for ridiculously short suits and sportcoats. (Not that yours is in any way ridiculously short.)
By traditional standards, and going by the somewhat inaccurate general rule having to do with jacket length and the curve of your fingers when your hands are at your sides, it's probably within an inch or so of being the ideal length. As a real world matter, that's close enough, especially when it's a casual cotton sportcoat we're talking about. Don't worry about it.
Thanks. This one is a sunk cost and I hardly wear it but am looking at another that is the same length in cotton/linen
Here is a side view