I know the rightmost cloud is supposed to be overlapping but it looks like it's wedging unnaturally into the other cloud form. That's the only thing throwing me off, looks good otherwise.
Yes, that's a weak point. I had tried to give a sense of depth by means of dithering, but the result did look quite consistent with the fact that the sun is behind the clouds. Although I'm by no means after a realistic lighting - the platforms' is all but realistic and consistent - having such a blatant issue in such a restricted space seemed too much, so I chose to just use shapes. I'll see what I can do and post the result here (but first I have to solve a synchronization issue in the code: for a certain feature I want to add, I have changed the way the video modes are handled to have more freedom with the top graphics, but this is again causing jerks... maybe I'm close to the solution, but I don't know for sure).
EDIT: issue fixed, so back to pushing pixels...
I tried a few quick things to tackle the issue of badly overlapping clouds (note: not all of them comply with the video mode restrictions, so they're just meant to give an idea of the possible solutions):
I think the last one is quite alright and I'll go for it unless somebody has a better suggestion.
Also, let me anticipate that now that the new video mode handling is in place I can start pixelling skies depicting dawn, sunset and night as well...