Only real problem I saw so far was that you used too much resin.The resin has no strength to it. And mat that is to wet is also not as strong as mat that is just wetted out.
You want to just get the mat looking clear.
Order a fiberglass roller. Wet out the mat with the brush and resin, then throw another layer of mat on and roll that with the roller. It will push all the resin and it will save you resin and be stronger.
Other than that, looks like you used some resin that was starting to cure. But good job so far.