|Greetings from the Critique Club!
First impression: As noted in my original comment, the darkness of this image makes oit difficult to see details.
Artisitic: I do like the inside of the coffee cups being red and you trying to catch and emphasize the curved redness, but it needs a bit more.
Technical: You shot wide open, which is rarely a lens' best aperture; arguably it gave you too shallow a dof as the handle of the closest mug is oof and looks disconnected from the rest of the mug. Yet the leading edge of the one on the left is also in focus so the effect is a little puzzling. I think for a shot like this your ISO is far too low; 200 would probably have been fine. Your shutter speed is fine, though a tripod comes in handy when shooting slow. At this stage you don't need anything fancy, just enough to keep your camera stable. Glad you diffused the flash to help take down highlights.
Overall: Not a bad shot and I imagine this setup would be easy enough to replicate. Grab an inexpensive tripod, possibly a shutter release too, and learn to love the manual focus button. Then shoot and experiment, it's the only surefire way to learn.
Feel free to PM me,