BMP2 and ocular melanoma: Upon tissue collection, 11 weeks post‐implantation (with BMP2), distinct differences in tissue vascularization were already observable, with higher vascularization in four week‐GelMA conditions (in OM and OM+) (Figure 5A; Figure S7A, Supporting Information), compared to GelMA 1 week and CaP‐mPCL explants, for both preculture compositions.