That's not a pine, it's a spruce or a fir xP Pines have upward-facing or horizontal branches that tend to look fluffy and don't have quite that sprucey branch structure, they're more like typical trees in terms of where the leaves/needles grow.
Seconding EddyZ's feedback about the trunk, it doesn't fit the species at all. Spruces, firs, and pine usually have thin, rough trunks, reddish or grey depending on the species. The roughness is a major characteristic. Even if all the trees in the game have thick trunks and it becomes obvious as a stylistic choice, getting the other features right would really help sell the trunks as intentional.
The top of the tree feels very artificial, almost like a hat. There should probably be some smaller/younger branches at the top. The current look could work for a highly stylised tree, but the rest of the tree is too realistic for that to fit imo.
The pixelling, however, is top-notch :>
Edit: Would you mind not including a width with your IMG tag? It breaks the forum's zooming.