Yes, you may appeal a denied Romero motion. The appellate court will only decide if the record “affirmatively discloses that the trial court misunderstood the scope of its discretion.” ((People v. Fuhrman (1997) 16 Cal.4th 930 , 67 Cal.Rptr.2d 1; 941 P.2d 1189)). If the trial court failed to express that it had considered but rejected the factors brought up by the defendant and merely ruled there was no “good cause” to grant the motion, then you may be able to get the appeals court to remand the case back to the trial court. Another basis of appeal is that the sentence is so disproportionate to the offense that it constitutes cruel and unusual punishment.