Again, I'm afraid I'm slightly in the camp of "sorry, its nor quite working for me"...
Generally, I agree with all the points that Maria made... the composition isn't quite "doing it" - because you're looking head on at the fruit, not only do they become "colour blobs", they make a "barrier" between the viewer and the Glass and Bottle...
Generally, I find that it's easier to work with the fruit ON or IN something, either a platter or fruitbowl. I also prefer to have a viewpoint that's more "natural" to a tabletop arrangement, i.e. looking downwards slightly onto it - okay, as I'm 6'1", maybe not QUITE that far down an angle but certainly not at 4" above the table view.
The other thing with using fruit, is choosing the "face" of the fruit to show... Apples aren't round, there's shape in them, or there's the stalk end, or the opposite end to the stalk (can't remember the proper botanical/biological name for it - creeping seniltity) - USE those "features" to give the fruit character.
What's that you say, fruit doesn't have a character...
https://www.flickr.com/photos/the_big_yin/6170160903
but really, the biggest thing for me is (are) the reflections of the "window light" - as you've said it was shot with off-camera flash, should I take it that the flash was behind some form of "diffuser" - in an attempt to create a large soft light emulating gentle window light ?? if that's the case, I'm afraid you've missed the mark there - because the reflections of the "diffuser" just completely wipe out the bottle and the glass...
it's something I've spent AGES messing around with to get right in some of my stuff... as Maria mentioned, my Still Life work is often quite "busy" with lots of components in there, and I do often try and add "window lights" to the shots... tricky when you've got glassware and lots of other reflective and semi-reflective surfaces on there... but it's possible...
Ontbijtjes 1 by
The Big Yin, on Flickr
sorry for "bombing" your thread - but the above picture kind of illustrates a couple of things in one go - getting a slightly elevated perspective, not being afraid of leaving spaces in the arrangement to let items at the back still stay in view, the use of "piling things up" to gain extra perspective or emphasise possibly "lesser" items in the composition" and presenting items with the most "characterful face" to camera - oh - and the careful use of highlight reflections (with a cheeky use of a "gobo" on a softbox to make it look like a sash-window light for the main light, a "dark wall" (read a mahoosive sheet of expanded polystyrene insulation board painted matt-black on one side - its normal white on the other also makes a good reflector if I need one...) on the far side from the softbox to control any untoward reflections coming back on the "wrong side" of any glassware. I'm struggling to remember, but I also added a small amount of light from the "front" into the shot, but I can't remember if it was a second softbox on VERY VERY low or if it was actually just a reflector or two... Sorry, it's a long time since I took this shot - over 2 years ago.
Sorry I can't be more positive about your shot - and I hope I've not discouraged you, because I really, really enjoy looking at Still Life work, and would love to see you try some more, and watch your progression...
its quite a learning curve, but it's fun to play around with.