Jeff;
IMO, that's fine-looking "first draft" wood, Pard!
Of course, after you add some dirt and grime to the whole thing, it will look better (not that there's much betterness to get!). Presuming that these are floor-boards on an equipment trailer, you may want to consider where some cargo item may have leaked some oil or such and add some specific oily stain in there. Also, wood tends to gray-out fairly quickly with exposure to sunlight and the elements - so maybe a thin gray wash will address this and tone down a little the apparent contrasts.
What did you use for the planks? And - is /are the widths appropriate to the scale? They do seem like maybe wide boards to my naive eye! When I look at heavy-hauler trailers with wood in the floors, usually that stuff is fairly narrow and thick - maybe 4 x 6 or 4 x 8 or 4 x 10 - inch boards?
And... I may be way off, here... my exposure to equipment trailers has the wood deck up at the top or near-level with the top metal rails or floor runs. Your stuff looks like it's way down below the deck-level. Is this what you want?
But I have no knowledge of the specific item you are doing, so all this may well be besides the point! As wood goes, your's goes well, IMO! I'm looking forward to seeing the next, more aged - step!
Cheers!
Bob