| Move the selected vertive a bit down and back to break the straight wall effect. |  |
| The only triangles left on top are the faces selected, lets get
rid of them. Merge circled vertices, quadify. |
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| We have 2 triangles left, but first we will resize a bit fingers. |  |
| Selecting as shown, size around 0.92 factor. proceed for the 4 fingers. |  |
| Move all fingers a bit to compensate for the resize we just did. Now it is time to get rid of the 2 left triangles by creating a new knife cut as shown. |  |
| Create a new loop cut as shown. |  |
| Select faces shown. |  |
| Do a knife cut (midpoints). Dont cut the circled edge. |  |
| Quadify and reshape. |  |
| Subsurfed result. Topology is sound, and with little tweaking, you will get nice results. |  |
| Sharpen a bit tendon edge markings. |  |
| Lower a bit highlited edges. |  |
| Merge 2 vertexs. |  |
| Lower a bit highlited edges. |  |
| Final subsurf result. Need to be softened a bit. |  |