You can use the basic selection and transformation tools we have available in the 3D viewport to adjust your UV map further. To get real-time feedback and see how your applied texture changes, make sure you are in material preview mode in the 3D viewport. If your object is more complex, such as an organic model, we need to work with what we consider the manual tools to unwrap. You need to plan where to put your seams on your model so that they are as hidden as possible. You must also use as few UV islands as possible to minimize the number of seams. You can get some visual help from Blender to see how your UV map is stretching. In the UV editor header on the right side, there is a UV Editing drop-down menu. You may have to middle mouse click and drag the header to see the menu. You can view stretching by angle or area. How to prevent textures from becoming stretched as we model? More blue colors mean less stretch, while yellow means moderate stretch and red shows severe stretching. If we have already applied a texture to our object but we still intend to continue model it, we can prevent textures from stretching in a few different ways. Use box projection instead of UV Mapping.Use Correct UVs when creating loop cuts.Use the "correct face attributes" feature as we extrude. Go to the Active tool and workspace settings.The "correct face attribute" option will create new UV space for newly created geometry with accordance to the surrounding mesh and UV map. That is the topmost tab in the properties panel.
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