I don't think there's any problem with colour contrast. But as they're both solid, I kind of wish the jacket was a windowpane or something. Pleasant overall, though.
I really like the colours, the jacket and especially the cardigan, but the problem with this is that the scale of the patterns on the tie and jacket are way too similar. A wonderful set ends up being terribly busy.
Haven't seen a fit from you before, I think, so welcome! I like the colours and overall relaxed casual look of the individual elements. Having said that, that overall casual vibe isn't in sync with popping the jacket collar. To me, that always comes across as a very calculated style choice (unless it's genuinely really blustery/raining, in which case you wouldn't be taking a photo of yourself!). IMO therefore, a popped collar requires the other elements of the outfit to appear similarly calculated, creating a deliberately flashy-casual look, which your outfit otherwise is not. So for your outfit, keep the collar down.
Assuming the weather is OK for it, you might also want undo another shirt button, to echo the relaxed look of other items. Alternatively, if you wanted to dress it up fractionally, a wool or knit tie would be great here.
Admit it, you shot a Grey Alien, didn't you? They only wanted to probe you, dammit.
Rain, rain, go away... (much-needed trench & brolly were added on going out):
You seem to have this down to a science. Other than the JAB seersucker you showed us the other day, do you own any ill-fitting suits? You have one hell of a wardrobe.