Agree with the previous comments. A few things of the top of my head:
Get the volume right, not too quiet or in the red.
Listen back to the a test recording of a track on its own
Record things without reverb or fx's, you can add them later
Get everything in tune and in time
Acoustic recording: stop extraneous noises, I found I make a lot of tapping noises on an acoustic guitar, the number of times I leave my mobile on aaah
In terms of production use the stereo imagine and the whole acoustic range to 'place' tracks to give them some space. Also use fx and tools such as hi and low filters, compressors and channel strips. I also cut out quiet acoustic sections.
Listen to some productions you like, compare and really listen to what you've recorded.
There are also lots material and resources out there.
Neil