Great pictures!
It's really only worth shooting RAW if you do some post-processing, even if it's just to crop. I don't know how much you already know about picture formats, but the gist of it is that JPEG is a lossy format, meaning you lose some data from the file every time you save it. When you shoot in JPEG, it saves the file from the RAW data, then disposes of the RAW file; essentially, you've already lost some data before you even touched the file. So it's already considered a "first generation" JPEG, in that it's the first time the image has been saved as a JPEG. When you open it and edit it in Photoshop, for example, then save it again as JPEG, you lose more data and it's known as a second generation JPEG. Every time you save a JPEG, the data is compressed and some of it is lost. A rule of thumb is you shouldn't ever use JPEGs for printing (assuming you're going for professional-level quality) unless it is a first generation JPEG.
So, if you shoot in RAW, open the RAW file in Photoshop, do your editing, and save as JPEG, you've not yet lost enough data that anyone is going to notice, because it's still first generation.
Hope that makes sense, lol. >.<