Very much on the dark side for my liking. Horizontal isn’t straight on the 2nd shot and there is no real foreground interest (this is something I struggle with in landscapes myself). What part of Muckish was that on?
A slight lowering of the skies exposure in the first might render you some more prominent light shafts?
Haze on the second shot from the type of day, not much I know of that can bring detail back in such conditions. I had to bin a good few shots the last few days due to haze. The sky in the second shot is a keeper perhaps, might make a nice masked in sky on a past or future image?