Yes, you have a very scattered schedule. For liberal arts colleges, there are a lot of open electives anyway. The difficulty of your course load is fine because you have a full Calculus sequence, a full chemistry sequence, and some physics in there. Of course, you would need to declare a major with all those courses are requirements, such as math or chemistry. The problem is Pomona and Williams (and most top liberal arts colleges) are super-selective for transfer students. Unless you are applying from a college of near-equal ranking, which I assume otherwise, your chances are low.
I consider Rice a research university, but the transfer acceptance rate there is much higher than Amherst. Again, your chances depend on your declared major - you are far behind for something like engineering, but math should be possible. Make sure to focus your studies next semester.