[T]here are several fascinating mixed-media pieces that give subtle three-dimensionality to predominately flat surfaces.

You can accept your imperfection or try to improve.

In a docking study between transchalcone and PPA, Trp 59 and Tyr 62 were reported to be the important aromatic amino acid residues in pi-pi interactions involving the two aromatic rings of ligand and side chain [54 ].

the red Comets do carry the portensions of Mars