That’s really not bad for a first try. My first shots were worse than that.
Astrophotography is about the hardest photography you can try. Much harder than terrestrial photography in my opinion.
It looks like you are suffering from bad focus, shaky mount, bad stacking or all three.
You last image looks like you suffered “clipping”. Meaning the sensors got over saturated in certain spots. Those areas are “blown” and pure white and no amount of processing will recover that information. If you software has a peak meter or histrogram, make sure the peak values stays lower than about 90% of masx.
Did your DSI software have a focus meter? You might give a “Hartmann Mask” a try (google it).
Were those single frames or did you stack sub frames? If stacking did you use Registax (freeware)? The wavelets filters in Registax will sharpen about as good or better than anything out there for planetary images.
Here are two moon images I took recently with my 12” Meade LX200:
Crater Scheiner Crater Moretus While your first trys may not be perfect, I bet they still gave you a little bit of a thrill to capture something at all. Its addictive. ;o) And you’ll continue to get better with every shot. Looking forward to seeing your next ones.
Regards,
Wab