Hi, so being new I am asking for an experienced opinion. There are 2 images attached, both were taken with my 10" F4 Schmidt Newtonian with dual speed Moonlite focuser on a new EQ6-R Pro mount with a Polemaster and 60mm guide scope / ASI-120MMS guide camera and using PHD2 with Stellarium and APT, taken with my unmodified Nikon D5600 from Bortle class 8 skies but using an Optolong L-Enhance filter.The details of both images are below, my question is if it is my image processing skills or the camera that needs improving. Clearly my processing skills are very challenged as Photoshop is a new medium for me, but wondering if it is all that or something else as well? I have seen images of M101 with smaller apertures and similar sub times and the image was far superior to mine. I get there are seeing factors and such, but just looking for opinions on where to focus my time. Thanks!
40 lights at 240 seconds @ ISO 800
20 Darks at 240 seconds @ISO 800
Stacked in 64 bit Deep Sky Stacker
20 Lights @ 240 Seconds @ISO 1600
10 Darks @ 240 Seconds @ ISO 1600